feat(infra): implement delete functionality for transactions with UI integration

feat: display transactions on the web

.aspire/settings.json

@@ -1,3 +1,4 @@
 {
-  "appHostPath": "../src/FiscalOS.AppHost/FiscalOS.AppHost.csproj"
+  "appHostPath": "../src/FiscalOS.AppHost/FiscalOS.AppHost.csproj",
+  "defaultWatchEnabled": "true"
 }

.dockerignore

@@ -0,0 +1,11 @@
+.git/
+.vscode/
+.aspire/
+Coverage/
+tests/
+docker/data/
+docker/keys/
+**/bin/
+**/obj/
+**/node_modules/
+**/.env

.editorconfig

@@ -84,6 +84,7 @@ dotnet_diagnostic.IDE0058.severity = none
 dotnet_diagnostic.IDE0100.severity = none
 dotnet_diagnostic.CA1515.severity = none
 dotnet_diagnostic.CA1848.severity = none
+dotnet_diagnostic.CA1873.severity = none
 
 # var preferences
 csharp_style_var_elsewhere = true:suggestion
@@ -94,7 +95,7 @@ csharp_style_var_when_type_is_apparent = true:suggestion
 csharp_style_expression_bodied_accessors = true:silent
 csharp_style_expression_bodied_constructors = false:silent
 csharp_style_expression_bodied_indexers = true:silent
-csharp_style_expression_bodied_lambdas = true:suggestion
+csharp_style_expression_bodied_lambdas = false:silent
 csharp_style_expression_bodied_local_functions = false:silent
 csharp_style_expression_bodied_methods = false:silent
 csharp_style_expression_bodied_operators = false:silent

.github/workflows/deploy.yml

@@ -0,0 +1,100 @@
+name: Deploy
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+env:
+  WEB_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/fiscalos-web
+  API_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/fiscalos-api
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v4
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push web image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/Dockerfile.web
+          push: true
+          tags: |
+            ${{ env.WEB_IMAGE }}:latest
+            ${{ env.WEB_IMAGE }}:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+      - name: Build and push API image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/Dockerfile.api
+          push: true
+          tags: |
+            ${{ env.API_IMAGE }}:latest
+            ${{ env.API_IMAGE }}:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build-and-push
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Copy compose file to server
+        uses: appleboy/scp-action@v1.0.0
+        with:
+          host: ${{ secrets.DEPLOY_HOST }}
+          username: ${{ secrets.DEPLOY_USER }}
+          key: ${{ secrets.DEPLOY_SSH_KEY }}
+          source: docker/docker-compose.prod.yml
+          target: ${{ secrets.DEPLOY_PATH }}
+          strip_components: 1
+      - name: Deploy on server
+        uses: appleboy/ssh-action@v1
+        env:
+          DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
+          IMAGE_TAG: ${{ github.sha }}
+          JWT_AUDIENCE: ${{ secrets.JWT_AUDIENCE }}
+          JWT_ISSUER: ${{ secrets.JWT_ISSUER }}
+          JWT_SECRET: ${{ secrets.JWT_SECRET }}
+          JWT_EXPIRY_IN_MINUTES: ${{ secrets.JWT_EXPIRY_IN_MINUTES }}
+          FILE_KEY_RING_PRIMARY_KEY_ID: ${{ secrets.FILE_KEY_RING_PRIMARY_KEY_ID }}
+          PLAID_CLIENT_ID: ${{ secrets.PLAID_CLIENT_ID }}
+          PLAID_SECRET: ${{ secrets.PLAID_SECRET }}
+          PLAID_WEBHOOK: ${{ secrets.PLAID_WEBHOOK }}
+          SEQ_SERVER_URL: ${{ secrets.SEQ_SERVER_URL }}
+          SEQ_API_KEY_HEADER: ${{ secrets.SEQ_API_KEY_HEADER }}
+          SEQ_API_KEY: ${{ secrets.SEQ_API_KEY }}
+        with:
+          host: ${{ secrets.DEPLOY_HOST }}
+          username: ${{ secrets.DEPLOY_USER }}
+          key: ${{ secrets.DEPLOY_SSH_KEY }}
+          envs: DOCKERHUB_USERNAME,IMAGE_TAG,JWT_AUDIENCE,JWT_ISSUER,JWT_SECRET,JWT_EXPIRY_IN_MINUTES,FILE_KEY_RING_PRIMARY_KEY_ID,PLAID_CLIENT_ID,PLAID_SECRET,PLAID_WEBHOOK,SEQ_SERVER_URL,SEQ_API_KEY_HEADER,SEQ_API_KEY
+          script: |
+            cd ${{ secrets.DEPLOY_PATH }}
+            cat > .env << EOF
+            DOCKERHUB_USERNAME=${DOCKERHUB_USERNAME}
+            IMAGE_TAG=${IMAGE_TAG}
+            JWT_AUDIENCE=${JWT_AUDIENCE}
+            JWT_ISSUER=${JWT_ISSUER}
+            JWT_SECRET=${JWT_SECRET}
+            JWT_EXPIRY_IN_MINUTES=${JWT_EXPIRY_IN_MINUTES}
+            FILE_KEY_RING_PRIMARY_KEY_ID=${FILE_KEY_RING_PRIMARY_KEY_ID}
+            PLAID_CLIENT_ID=${PLAID_CLIENT_ID}
+            PLAID_SECRET=${PLAID_SECRET}
+            PLAID_WEBHOOK=${PLAID_WEBHOOK}
+            SEQ_SERVER_URL=${SEQ_SERVER_URL}
+            SEQ_API_KEY_HEADER=${SEQ_API_KEY_HEADER}
+            SEQ_API_KEY=${SEQ_API_KEY}
+            EOF
+            docker compose -f docker-compose.prod.yml pull
+            docker compose -f docker-compose.prod.yml up -d --remove-orphans
+            docker image prune -f

.gitignore

@@ -3,10 +3,17 @@
 ##
 ## Get latest from `dotnet new gitignore`
 
+# coverage
+coverage/
+
 # appsettings
 appsettings*.json
 !appsettings.Example.json
 
+# docker bind-mount data
+docker/data/
+docker/keys/
+
 # dotenv files
 .env
 

.vscode/launch.json

@@ -0,0 +1,11 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "aspire",
+      "request": "launch",
+      "name": "Aspire: Launch default apphost",
+      "program": "${workspaceFolder}"
+    }
+  ]
+}

.vscode/settings.json

@@ -10,5 +10,10 @@
     "source.fixAll": "explicit"
   },
   "editor.formatOnSave": true,
-  "editor.defaultFormatter": "esbenp.prettier-vscode"
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "cSpell.words": ["DOCKERHUB", "Dtos", "Encryptor", "fiscalos", "Validatable"],
+  "python-envs.defaultEnvManager": "ms-python.python:system",
+  "search.exclude": {
+    "**/Migrations": true
+  }
 }

FiscalOS.slnx

@@ -12,8 +12,10 @@
   </Folder>
   <Folder Name="/tests/">
     <Project Path="tests/FiscalOS.API.Tests/FiscalOS.API.Tests.csproj" />
+    <Project Path="tests/FiscalOS.AppHost.Tests/FiscalOS.AppHost.Tests.csproj" />
     <Project Path="tests/FiscalOS.Core.Tests/FiscalOS.Core.Tests.csproj" />
     <Project Path="tests/FiscalOS.Infra.Tests/FiscalOS.Infra.Tests.csproj" />
+    <Project Path="tests/FiscalOS.Tests.Common/FiscalOS.Tests.Common.csproj" />
   </Folder>
   <Project Path="src/FiscalOS.AppHost/FiscalOS.AppHost.csproj" />
   <Project Path="src/FiscalOS.ServiceDefaults/FiscalOS.ServiceDefaults.csproj" />

docker/Dockerfile.api

@@ -0,0 +1,39 @@
+FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
+WORKDIR /repo
+
+COPY Directory.Build.props .
+COPY .editorconfig .
+COPY src/.editorconfig src/
+COPY src/Directory.Build.props src/
+COPY src/Directory.Packages.props src/
+
+COPY src/FiscalOS.Core/FiscalOS.Core.csproj src/FiscalOS.Core/
+COPY src/FiscalOS.Infra/FiscalOS.Infra.csproj src/FiscalOS.Infra/
+COPY src/FiscalOS.ServiceDefaults/FiscalOS.ServiceDefaults.csproj src/FiscalOS.ServiceDefaults/
+COPY src/FiscalOS.API/FiscalOS.API.csproj src/FiscalOS.API/
+COPY src/FiscalOS.AdminCLI/FiscalOS.AdminCLI.csproj src/FiscalOS.AdminCLI/
+
+RUN dotnet restore src/FiscalOS.API/FiscalOS.API.csproj
+RUN dotnet restore src/FiscalOS.AdminCLI/FiscalOS.AdminCLI.csproj
+
+COPY src/ src/
+
+RUN dotnet publish src/FiscalOS.API/FiscalOS.API.csproj \
+    -c Release \
+    -o /publish/api \
+    --no-restore
+RUN dotnet publish src/FiscalOS.AdminCLI/FiscalOS.AdminCLI.csproj \
+    -c Release \
+    -o /publish/admincli \
+    --no-restore
+
+FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS final
+WORKDIR /app
+
+COPY --from=build /publish/api .
+COPY --from=build /publish/admincli /usr/local/lib/admincli
+
+ENV PATH="/usr/local/lib/admincli:${PATH}"
+
+EXPOSE 8080
+ENTRYPOINT ["dotnet", "FiscalOS.API.dll"]

docker/Dockerfile.web

@@ -0,0 +1,13 @@
+FROM node:24-alpine AS build
+WORKDIR /app
+
+COPY src/FiscalOS.Web/package.json src/FiscalOS.Web/package-lock.json ./
+RUN npm ci
+
+COPY src/FiscalOS.Web/ .
+RUN npm run build
+
+FROM nginx:alpine AS final
+COPY docker/nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+EXPOSE 80

docker/docker-compose.prod.yml

@@ -0,0 +1,30 @@
+services:
+  web:
+    image: ${DOCKERHUB_USERNAME}/fiscalos-web:${IMAGE_TAG:-latest}
+    ports:
+      - "8081:80"
+    depends_on:
+      - api
+    restart: unless-stopped
+
+  api:
+    image: ${DOCKERHUB_USERNAME}/fiscalos-api:${IMAGE_TAG:-latest}
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - AppDbContextOptions__DatabaseFilePath=/data/fiscalos.db
+      - JwtOptions__Audience=${JWT_AUDIENCE}
+      - JwtOptions__Issuer=${JWT_ISSUER}
+      - JwtOptions__Secret=${JWT_SECRET}
+      - JwtOptions__ExpiryInMinutes=${JWT_EXPIRY_IN_MINUTES}
+      - FileKeyRingOptions__KeysDirectoryPath=/keys
+      - FileKeyRingOptions__PrimaryKeyId=${FILE_KEY_RING_PRIMARY_KEY_ID}
+      - PlaidClientOptions__ClientId=${PLAID_CLIENT_ID}
+      - PlaidClientOptions__Secret=${PLAID_SECRET}
+      - PlaidClientOptions__Webhook=${PLAID_WEBHOOK}
+      - SeqOptions__ServerUrl=${SEQ_SERVER_URL}
+      - SeqOptions__ApiKeyHeader=${SEQ_API_KEY_HEADER}
+      - SeqOptions__ApiKey=${SEQ_API_KEY}
+    volumes:
+      - ./data:/data
+      - ./keys:/keys
+    restart: unless-stopped

docker/docker-compose.yml

@@ -0,0 +1,36 @@
+services:
+  web:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.web
+    ports:
+      - "80:80"
+    depends_on:
+      - api
+    restart: unless-stopped
+
+  api:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.api
+    ports:
+      - "8080:8080"
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - AppDbContextOptions__DatabaseFilePath=/data/fiscalos.db
+      - JwtOptions__Audience=${JWT_AUDIENCE}
+      - JwtOptions__Issuer=${JWT_ISSUER}
+      - JwtOptions__Secret=${JWT_SECRET}
+      - JwtOptions__ExpiryInMinutes=${JWT_EXPIRY_IN_MINUTES}
+      - FileKeyRingOptions__KeysDirectoryPath=/keys
+      - FileKeyRingOptions__PrimaryKeyId=${FILE_KEY_RING_PRIMARY_KEY_ID}
+      - PlaidClientOptions__ClientId=${PLAID_CLIENT_ID}
+      - PlaidClientOptions__Secret=${PLAID_SECRET}
+      - PlaidClientOptions__Webhook=${PLAID_WEBHOOK}
+      - SeqOptions__ServerUrl=${SEQ_SERVER_URL}
+      - SeqOptions__ApiKeyHeader=${SEQ_API_KEY_HEADER}
+      - SeqOptions__ApiKey=${SEQ_API_KEY}
+    volumes:
+      - ./data:/data
+      - ./keys:/keys
+    restart: unless-stopped

docker/nginx.conf

@@ -0,0 +1,18 @@
+server {
+  listen 80;
+  root /usr/share/nginx/html;
+  index index.html;
+
+  location /api/ {
+    proxy_pass http://api:8080/;
+    proxy_http_version 1.1;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto $scheme;
+  }
+
+  location / {
+    try_files $uri $uri/ /index.html;
+  }
+}

global.json

@@ -1,4 +1,8 @@
 {
+  "sdk": {
+    "version": "10.0.103",
+    "rollForward": "latestPatch"
+  },
   "test": {
     "runner": "Microsoft.Testing.Platform"
   }

src/.editorconfig

@@ -0,0 +1,4 @@
+[*.cs]
+
+dotnet_code_quality.ca1711.allowed_suffixes = Queue
+dotnet_diagnostic.CA1031.severity = none

src/Directory.Packages.props

@@ -3,7 +3,7 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Aspire.Hosting.JavaScript" Version="13.1.1" />
+    <PackageVersion Include="Aspire.Hosting.JavaScript" Version="13.1.2" />
     <PackageVersion Include="Going.Plaid" Version="6.56.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.2" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.2">

src/FiscalOS.API/Accounts/AccountsExtensions.cs

@@ -1,3 +1,5 @@
+using FiscalOS.API.Accounts.Add;
+
 namespace FiscalOS.API.Accounts;
 
 internal static class AccountsExtensions

src/FiscalOS.API/Accounts/Add/Endpoint.cs

@@ -1,3 +1,5 @@
+using Account = FiscalOS.Core.Accounts.Account;
+
 namespace FiscalOS.API.Accounts.Add;
 
 internal static class Endpoint
@@ -13,15 +15,20 @@ internal static class Endpoint
     HttpContext httpContext,
     [FromBody] Request request,
     [FromServices] AppDbContext appDbContext,
+    [FromServices] IEncryptor encryptor,
+    [FromServices] IPlaidAccountService plaidAccountService,
+    [FromServices] IAsyncQueue<SyncUpdatesQueueItem> queue,
     CancellationToken ct
   )
   {
     var userId = httpContext.GetUserId();
 
     var user = await appDbContext.Users
-      .Include(u => u.Institutions.Where(i => i.Metadata is PlaidMetadata && ((PlaidMetadata)i.Metadata).PlaidId == request.PlaidInstitutionId))
+      .Include(u => u.Institutions.Where(i => i.Metadata is PlaidInstitutionMetadata && ((PlaidInstitutionMetadata)i.Metadata).PlaidId == request.ProviderInstitutionId))
-      .Include(u => u.Accounts.Where(a => a.Metadata is PlaidAccountMetadata && ((PlaidAccountMetadata)a.Metadata).PlaidId == request.PlaidAccountId))
+      .ThenInclude(i => i.Metadata)
+      .Include(u => u.Accounts.Where(a => a.Metadata is PlaidAccountMetadata && ((PlaidAccountMetadata)a.Metadata).PlaidId == request.ProviderAccountId))
       .ThenInclude(a => a.Metadata)
+      .AsSplitQuery()
       .SingleOrDefaultAsync(u => u.Id == userId, ct);
 
     if (user is null)
@@ -33,7 +40,17 @@ internal static class Endpoint
     {
       return Results.ValidationProblem(new Dictionary<string, string[]>
       {
-        ["PlaidInstitutionId"] = ["The PlaidInstitutionId field is invalid. No institution connected with the given PlaidInstitutionId was found for the user."],
+        [nameof(Request.ProviderInstitutionId)] = [$"The {nameof(Request.ProviderInstitutionId)} field is invalid."],
+      });
+    }
+
+    var plaidInstitutionMetadata = (PlaidInstitutionMetadata?)user.Institutions.First().Metadata;
+
+    if (plaidInstitutionMetadata is null)
+    {
+      return Results.ValidationProblem(new Dictionary<string, string[]>
+      {
+        [nameof(Request.ProviderInstitutionId)] = [$"The {nameof(Request.ProviderInstitutionId)} field is invalid."],
       });
     }
 
@@ -42,14 +59,14 @@ internal static class Endpoint
       return Results.Conflict();
     }
 
-    var accountMetadata = PlaidAccountMetadata.From(request.PlaidAccountId, request.PlaidAccountName);
+    var decryptedAccessToken = await encryptor.DecryptAsyncFor(user, plaidInstitutionMetadata.EncryptedAccessToken, ct);
-    var account = Account.From(user.Institutions.First().Id, request.PlaidAccountName, accountMetadata);
+    var accountMetadata = PlaidAccountMetadata.From(request.ProviderAccountId, request.ProviderAccountName);
-    var balance = Balance.From(request.AccountCurrentBalance, request.AccountAvailableBalance, request.AccountCurrencyCode);
+    var account = Account.From(request.ProviderAccountName, accountMetadata);
-
-    account.AddBalance(balance);
     user.AddAccount(account);
+    user.Institutions.First().AddAccount(account);
 
     await appDbContext.SaveChangesAsync(ct);
+    await queue.EnqueueAsync(new(plaidInstitutionMetadata.ItemId), ct);
 
     return Results.Ok();
   }

src/FiscalOS.API/Accounts/Add/Request.cs

@@ -2,36 +2,27 @@ namespace FiscalOS.API.Accounts.Add;
 
 public record Request : IValidatableObject
 {
-  public string PlaidInstitutionId { get; init; } = string.Empty;
+  public string ProviderInstitutionId { get; init; } = string.Empty;
-  public string PlaidAccountId { get; init; } = string.Empty;
+  public string ProviderAccountId { get; init; } = string.Empty;
-  public string PlaidAccountName { get; init; } = string.Empty;
+  public string ProviderAccountName { get; init; } = string.Empty;
-  public decimal AccountCurrentBalance { get; init; }
-  public decimal AccountAvailableBalance { get; init; }
-  public string AccountCurrencyCode { get; init; } = string.Empty;
 
   public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
   {
-    if (string.IsNullOrWhiteSpace(PlaidInstitutionId))
+    if (string.IsNullOrWhiteSpace(ProviderInstitutionId))
     {
-      var fieldName = nameof(PlaidInstitutionId);
+      var fieldName = nameof(ProviderInstitutionId);
       yield return new($"The {fieldName} field is required.", [fieldName]);
     }
 
-    if (string.IsNullOrWhiteSpace(PlaidAccountId))
+    if (string.IsNullOrWhiteSpace(ProviderAccountId))
     {
-      var fieldName = nameof(PlaidAccountId);
+      var fieldName = nameof(ProviderAccountId);
       yield return new($"The {fieldName} field is required.", [fieldName]);
     }
 
-    if (string.IsNullOrWhiteSpace(PlaidAccountName))
+    if (string.IsNullOrWhiteSpace(ProviderAccountName))
     {
-      var fieldName = nameof(PlaidAccountName);
+      var fieldName = nameof(ProviderAccountName);
-      yield return new($"The {fieldName} field is required.", [fieldName]);
-    }
-
-    if (string.IsNullOrWhiteSpace(AccountCurrencyCode))
-    {
-      var fieldName = nameof(AccountCurrencyCode);
       yield return new($"The {fieldName} field is required.", [fieldName]);
     }
   }

src/FiscalOS.API/Auth/AuthExtensions.cs

@@ -1,3 +1,7 @@
+using FiscalOS.API.Auth.Login;
+using FiscalOS.API.Auth.Logout;
+using FiscalOS.API.Auth.Refresh;
+
 namespace FiscalOS.API.Auth;
 
 internal static class AuthExtensions
@@ -9,6 +13,7 @@ internal static class AuthExtensions
     var authGroup = app.MapGroup(RouteGroupPrefix);
 
     authGroup.MapLoginEndpoint();
+    authGroup.MapLogoutEndpoint();
 
     authGroup.MapRefreshEndpoint()
       .RequireAuthorization(Schemes.AllowExpiredTokens);

src/FiscalOS.API/Auth/Logout/Endpoint.cs

@@ -0,0 +1,40 @@
+namespace FiscalOS.API.Auth.Logout;
+
+internal static class Endpoint
+{
+  private const string Route = "/logout";
+
+  public static RouteHandlerBuilder MapLogoutEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapPost(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    HttpContext httpContext,
+    [FromServices] AppDbContext appDbContext,
+    CancellationToken ct
+  )
+  {
+    var userId = httpContext.GetUserId();
+    var refreshToken = httpContext.GetRefreshTokenFromCookie();
+
+    var user = await appDbContext.Users
+      .Include(u => u.RefreshTokens
+        .Where(r => r.Token == refreshToken)
+      )
+      .Where(u => u.Id == userId)
+      .SingleOrDefaultAsync(ct);
+
+    if (user is null || user.RefreshTokens.Any() is false)
+    {
+      return Results.Unauthorized();
+    }
+
+    user.RefreshTokens.First().Revoke();
+    await appDbContext.SaveChangesAsync(ct);
+
+    httpContext.ExpireRefreshTokenCookie();
+
+    return Results.NoContent();
+  }
+}

src/FiscalOS.API/Common/GlobalExceptionHandler.cs

@@ -0,0 +1,48 @@
+using FiscalOS.Infra.Common;
+
+using Microsoft.AspNetCore.Diagnostics;
+
+internal sealed class GlobalExceptionHandler(
+  IProblemDetailsService problemDetailsService,
+  ILogger<GlobalExceptionHandler> logger
+) : IExceptionHandler
+{
+  public async ValueTask<bool> TryHandleAsync(
+    HttpContext httpContext,
+    Exception exception,
+    CancellationToken cancellationToken
+  )
+  {
+    switch (exception)
+    {
+      case PlaidException plaidException:
+        logger.LogError(
+          plaidException,
+          "Unhandled Plaid exception. PlaidRequestId: {PlaidRequestId}, PlaidStatusCode: {PlaidStatusCode}, PlaidErrorCode: {PlaidErrorCode}, PlaidErrorType: {PlaidErrorType}, PlaidErrorMessage: {PlaidErrorMessage}",
+          plaidException.RequestId,
+          plaidException.StatusCode,
+          plaidException.ErrorCode,
+          plaidException.ErrorType,
+          plaidException.ErrorMessage
+        );
+        break;
+      default:
+        logger.LogError(exception, "An unhandled exception occurred");
+        break;
+    }
+
+    httpContext.Response.StatusCode = StatusCodes.Status500InternalServerError;
+
+    return await problemDetailsService.TryWriteAsync(new ProblemDetailsContext
+    {
+      HttpContext = httpContext,
+      Exception = exception,
+      ProblemDetails = new ProblemDetails
+      {
+        Type = exception.GetType().Name,
+        Title = "Uh oh something has gone wrong.",
+        Detail = exception.Message
+      }
+    });
+  }
+}

src/FiscalOS.API/Common/PagedQuery.cs

@@ -0,0 +1,36 @@
+namespace FiscalOS.API.Common;
+
+internal sealed record PagedQuery
+{
+  public int PageNumber { get; init; }
+  public int PageSize { get; init; }
+
+  public static async ValueTask<PagedQuery> BindAsync(HttpContext context)
+  {
+    var pageNumber = int.TryParse(context.Request.Query["pageNumber"], out var pn) ? pn : 1;
+    var pageSize = int.TryParse(context.Request.Query["pageSize"], out var ps) ? ps : 1000;
+
+    return new PagedQuery
+    {
+      PageNumber = pageNumber,
+      PageSize = pageSize
+    };
+  }
+
+  public Dictionary<string, string[]> Validate()
+  {
+    var validationResults = new Dictionary<string, string[]>();
+
+    if (PageNumber <= 0)
+    {
+      validationResults[nameof(PageNumber)] = ["PageNumber must be greater than 0."];
+    }
+
+    if (PageSize <= 0 || PageSize > 1000)
+    {
+      validationResults[nameof(PageSize)] = ["PageSize must be between 1 and 1000."];
+    }
+
+    return validationResults;
+  }
+}

src/FiscalOS.API/Common/PagedResponse.cs

@@ -0,0 +1,34 @@
+namespace FiscalOS.API.Common;
+
+internal sealed record PagedResponse<T>
+{
+  public int PageNumber { get; init; }
+  public int PageSize { get; init; }
+  public int TotalItems { get; init; }
+  public int TotalPages { get; init; }
+  public T[] Items { get; init; } = [];
+
+  [JsonConstructor]
+  private PagedResponse()
+  {
+  }
+
+  public static PagedResponse<T> From(
+    int pageNumber,
+    int pageSize,
+    int totalItems,
+    T[] items
+  )
+  {
+    var totalPages = (int)Math.Ceiling((double)totalItems / pageSize);
+
+    return new PagedResponse<T>
+    {
+      PageNumber = pageNumber,
+      PageSize = pageSize,
+      TotalItems = totalItems,
+      TotalPages = totalPages,
+      Items = items
+    };
+  }
+}

src/FiscalOS.API/Http/HttpContextExtensions.cs

@@ -25,6 +25,21 @@ internal static class HttpContextExtensions
     );
   }
 
+  public static void ExpireRefreshTokenCookie(this HttpContext context)
+  {
+    context.Response.Cookies.Append(
+      RefreshTokenCookieName,
+      string.Empty,
+      new CookieOptions
+      {
+        HttpOnly = true,
+        Expires = DateTimeOffset.MinValue,
+        SameSite = SameSiteMode.Strict,
+        Secure = true
+      }
+    );
+  }
+
   public static string GetRefreshTokenFromCookie(this HttpContext context)
   {
     return context.Request.Cookies[RefreshTokenCookieName] ?? string.Empty;

src/FiscalOS.API/Institutions/Connect/Endpoint.cs

@@ -1,3 +1,5 @@
+using Institution = FiscalOS.Core.Accounts.Institution;
+
 namespace FiscalOS.API.Institutions.Connect;
 
 internal static class Endpoint
@@ -13,7 +15,7 @@ internal static class Endpoint
     HttpContext httpContext,
     [FromBody] Request request,
     [FromServices] AppDbContext appDbContext,
-    [FromServices] PlaidService plaidService,
+    [FromServices] IPlaidAccountService plaidAccountService,
     [FromServices] IEncryptor encryptor,
     CancellationToken ct
   )
@@ -23,8 +25,8 @@ internal static class Endpoint
     var user = await appDbContext.Users
       .Include(u => u.Institutions
         .Where(
-          i => i.Metadata is PlaidMetadata &&
+          i => i.Metadata is PlaidInstitutionMetadata &&
-            ((PlaidMetadata)i.Metadata).PlaidId == request.PlaidInstitutionId
+            ((PlaidInstitutionMetadata)i.Metadata).PlaidId == request.PlaidInstitutionId
         )
       )
       .ThenInclude(i => i.Metadata)
@@ -40,12 +42,11 @@ internal static class Endpoint
       return Results.Conflict();
     }
 
-    var (itemId, accessToken) = await plaidService.ExchangeTokenAsync(request.PublicToken);
+    var (itemId, accessToken) = await plaidAccountService.ExchangeTokenAsync(request.PublicToken);
-    var item = await plaidService.GetItemAsync(accessToken);
+    var item = await plaidAccountService.GetItemAsync(accessToken);
-
     var encryptedAccessToken = await encryptor.EncryptAsyncFor(user, accessToken, ct);
 
-    var plaidMetadata = PlaidMetadata.From(item.InstitutionId, item.InstitutionName, encryptedAccessToken);
+    var plaidMetadata = PlaidInstitutionMetadata.From(item.InstitutionId, item.InstitutionName, encryptedAccessToken, itemId);
     var institution = Institution.From(item.InstitutionName, plaidMetadata);
 
     user.AddInstitution(institution);

src/FiscalOS.API/Institutions/Get/Endpoint.cs

@@ -0,0 +1,36 @@
+namespace FiscalOS.API.Institutions.Get;
+
+internal static class Endpoint
+{
+  private const string Route = "/";
+
+  public static RouteHandlerBuilder MapGetEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapGet(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    HttpContext httpContext,
+    [FromServices] AppDbContext appDbContext
+  )
+  {
+    var userId = httpContext.GetUserId();
+
+    var user = await appDbContext.Users
+      .Include(u => u.Institutions)
+      .ThenInclude(i => i.Accounts)
+      .ThenInclude(a => a.Metadata)
+      .FirstOrDefaultAsync(u => u.Id == userId);
+
+    if (user is null)
+    {
+      return Results.Unauthorized();
+    }
+
+    var institutionDtos = user.Institutions
+      .Select(InstitutionDto.From)
+      .OrderBy(dto => dto.Name);
+
+    return Results.Ok(Response.From(institutionDtos));
+  }
+}

src/FiscalOS.API/Institutions/Get/Response.cs

@@ -0,0 +1,68 @@
+using Account = FiscalOS.Core.Accounts.Account;
+using Institution = FiscalOS.Core.Accounts.Institution;
+
+namespace FiscalOS.API.Institutions.Get;
+
+internal sealed record Response
+{
+  public IEnumerable<InstitutionDto> Institutions { get; init; } = [];
+
+  [JsonConstructor]
+  private Response()
+  {
+  }
+
+  public static Response From(IEnumerable<InstitutionDto> institutions)
+  {
+    return new Response
+    {
+      Institutions = institutions,
+    };
+  }
+}
+
+internal sealed record AccountDto
+{
+  public string Id { get; init; } = string.Empty;
+  public string ProviderId { get; init; } = string.Empty;
+  public string Name { get; init; } = string.Empty;
+
+  [JsonConstructor]
+  private AccountDto()
+  {
+  }
+
+  public static AccountDto From(Account account)
+  {
+    return new()
+    {
+      Id = account.Id.ToString(),
+      ProviderId = account.Metadata is PlaidAccountMetadata plaidMetadata
+        ? plaidMetadata.PlaidId
+        : string.Empty,
+      Name = account.Name,
+    };
+  }
+}
+
+internal sealed record InstitutionDto
+{
+  public string Id { get; init; } = string.Empty;
+  public string Name { get; init; } = string.Empty;
+  public IEnumerable<AccountDto> Accounts { get; init; } = [];
+
+  [JsonConstructor]
+  private InstitutionDto()
+  {
+  }
+
+  public static InstitutionDto From(Institution institution)
+  {
+    return new()
+    {
+      Id = institution.Id.ToString(),
+      Name = institution.Name,
+      Accounts = institution.Accounts.Select(AccountDto.From),
+    };
+  }
+}

src/FiscalOS.API/Institutions/GetAvailable/Endpoint.cs

@@ -13,7 +13,7 @@ internal static class Endpoint
     HttpContext httpContext,
     [FromRoute] Guid id,
     [FromServices] AppDbContext appDbContext,
-    [FromServices] PlaidService plaidService,
+    [FromServices] IPlaidAccountService plaidAccountService,
     [FromServices] IEncryptor encryptor,
     CancellationToken ct
   )
@@ -37,14 +37,14 @@ internal static class Endpoint
 
     var institution = user.Institutions.First();
 
-    if (institution.Metadata is not PlaidMetadata plaidMetadata)
+    if (institution.Metadata is not PlaidInstitutionMetadata plaidMetadata)
     {
       return Results.BadRequest();
     }
 
     var accessToken = await encryptor.DecryptAsyncFor(user, plaidMetadata.EncryptedAccessToken, ct);
-    var accounts = await plaidService.GetAccountsAsync(accessToken);
+    var accounts = await plaidAccountService.GetAccountsAsync(accessToken);
-    var accountsDtos = accounts.Select(AccountDto.FromPlaidAccount);
+    var accountsDtos = accounts.Select(a => AvailableAccountDto.From(plaidMetadata, a));
 
     return Results.Ok(Response.From(accountsDtos));
   }

src/FiscalOS.API/Institutions/GetAvailable/Response.cs

@@ -2,14 +2,14 @@ namespace FiscalOS.API.Institutions.GetAvailable;
 
 internal sealed record Response
 {
-  public IEnumerable<AccountDto> Accounts { get; init; } = [];
+  public IEnumerable<AvailableAccountDto> Accounts { get; init; } = [];
 
   [JsonConstructor]
   private Response()
   {
   }
 
-  public static Response From(IEnumerable<AccountDto> accounts)
+  public static Response From(IEnumerable<AvailableAccountDto> accounts)
   {
     return new Response
     {
@@ -18,8 +18,9 @@ internal sealed record Response
   }
 }
 
-internal sealed record AccountDto
+internal sealed record AvailableAccountDto
 {
+  public string ProviderInstitutionId { get; init; } = string.Empty;
   public string ProviderId { get; init; } = string.Empty;
   public string ProviderName { get; init; } = string.Empty;
   public decimal CurrentBalance { get; init; }
@@ -27,14 +28,18 @@ internal sealed record AccountDto
   public string CurrencyCode { get; init; } = string.Empty;
 
   [JsonConstructor]
-  private AccountDto()
+  private AvailableAccountDto()
   {
   }
 
-  public static AccountDto FromPlaidAccount(Going.Plaid.Entity.Account plaidAccount)
+  public static AvailableAccountDto From(
+    PlaidInstitutionMetadata plaidMetadata,
+    Going.Plaid.Entity.Account plaidAccount
+  )
   {
-    return new AccountDto
+    return new AvailableAccountDto
     {
+      ProviderInstitutionId = plaidMetadata.PlaidId,
       ProviderId = plaidAccount.AccountId,
       ProviderName = plaidAccount.Name,
       AvailableBalance = plaidAccount.Available,

src/FiscalOS.API/Institutions/InstitutionsExtensions.cs

@@ -1,3 +1,8 @@
+using FiscalOS.API.Institutions.Connect;
+using FiscalOS.API.Institutions.Get;
+using FiscalOS.API.Institutions.GetAvailable;
+using FiscalOS.API.Institutions.Link;
+
 namespace FiscalOS.API.Institutions;
 
 internal static class InstitutionsExtensions
@@ -12,6 +17,7 @@ internal static class InstitutionsExtensions
     institutionsGroup.MapConnectEndpoint();
     institutionsGroup.MapGetAvailableEndpoint();
     institutionsGroup.MapLinkEndpoint();
+    institutionsGroup.MapGetEndpoint();
 
     return institutionsGroup;
   }

src/FiscalOS.API/Institutions/Link/Endpoint.cs

@@ -12,7 +12,7 @@ internal static class Endpoint
   private static async Task<IResult> HandleAsync(
     HttpContext httpContext,
     [FromServices] AppDbContext appDbContext,
-    [FromServices] PlaidService plaidService
+    [FromServices] IPlaidAccountService plaidAccountService
   )
   {
     var userId = httpContext.GetUserId();
@@ -24,7 +24,7 @@ internal static class Endpoint
       return Results.Unauthorized();
     }
 
-    var linkToken = await plaidService.CreateLinkTokenAsync(user.Id.ToString());
+    var linkToken = await plaidAccountService.CreateLinkTokenAsync(user.Id.ToString());
 
     return Results.Ok(Response.From(linkToken));
   }

src/FiscalOS.API/Program.cs

@@ -1,12 +1,17 @@
-using FiscalOS.ServiceDefaults;
-
 var builder = WebApplication.CreateBuilder(args);
 
 builder.AddServiceDefaults();
 
 builder.Services.AddValidation();
+builder.Services.AddExceptionHandler<GlobalExceptionHandler>();
 builder.Services.AddProblemDetails();
 
+builder.Services.ConfigureHttpJsonOptions(static options =>
+{
+  options.SerializerOptions.Converters.Add(new EnumConverterFactory());
+  options.SerializerOptions.Converters.Add(new WebhookBaseConverter());
+});
+
 builder.Services.AddInfrastructure();
 
 builder.Services.AddAuthentication(static o =>
@@ -35,11 +40,12 @@ app.UseHttpsRedirection();
 app.UseAuthentication();
 app.UseAuthorization();
 app.UseStatusCodePages();
+app.UseExceptionHandler();
 
 app.MapDefaultEndpoints();
-
 app.MapAuthEndpoints();
 app.MapAccountsEndpoints();
 app.MapInstitutionsEndpoints();
+app.MapTransactionsGroup();
 
 app.Run();

src/FiscalOS.API/Transactions/DeleteById/Endpoint.cs

@@ -0,0 +1,34 @@
+namespace FiscalOS.API.Transactions.DeleteById;
+
+internal static class Endpoint
+{
+  private const string Route = "/{id}";
+
+  public static RouteHandlerBuilder MapDeleteEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapDelete(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    HttpContext httpContext,
+    [FromRoute] Guid id,
+    [FromServices] AppDbContext appDbContext,
+    CancellationToken ct
+  )
+  {
+    var userId = httpContext.GetUserId();
+
+    var existingTransaction = await appDbContext.Transactions
+      .SingleOrDefaultAsync(t => t.UserId == userId && t.Id == id, ct);
+
+    if (existingTransaction is null)
+    {
+      return Results.NotFound();
+    }
+
+    appDbContext.Transactions.Remove(existingTransaction);
+    await appDbContext.SaveChangesAsync(ct);
+
+    return Results.NoContent();
+  }
+}

src/FiscalOS.API/Transactions/FireWebhook/Endpoint.cs

@@ -0,0 +1,62 @@
+namespace FiscalOS.API.Transactions.FireWebhook;
+
+internal static class Endpoint
+{
+  private const string Route = "/fire-webhook";
+
+  public static RouteHandlerBuilder MapFireWebhookEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapPost(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    HttpContext httpContext,
+    [FromBody] Request request,
+    [FromServices] AppDbContext appDbContext,
+    [FromServices] IEncryptor encryptor,
+    [FromServices] PlaidClient plaidClient,
+    CancellationToken ct
+  )
+  {
+    var userId = httpContext.GetUserId();
+
+    var user = await appDbContext.Users
+      .Include(u => u.Accounts.Where(a => a.Id.ToString() == request.AccountId))
+      .ThenInclude(static a => a.Institution!)
+      .ThenInclude(static i => i.Metadata)
+      .FirstOrDefaultAsync(u => u.Id == userId, ct);
+
+    if (user is null)
+    {
+      return Results.Unauthorized();
+    }
+
+    if (user.Accounts.Any() is false)
+    {
+      return Results.NotFound();
+    }
+
+    var plaidMetadata = (PlaidInstitutionMetadata?)user.Accounts.First().Institution?.Metadata;
+
+    if (plaidMetadata is null)
+    {
+      return Results.InternalServerError("No metadata associated with account");
+    }
+
+    var accessToken = await encryptor.DecryptAsyncFor(user, plaidMetadata.EncryptedAccessToken, ct);
+
+    var fireEventResponse = await plaidClient.SandboxItemFireWebhookAsync(new()
+    {
+      AccessToken = accessToken,
+      WebhookType = SandboxItemFireWebhookRequestWebhookTypeEnum.Transactions,
+      WebhookCode = SandboxItemFireWebhookRequestWebhookCodeEnum.SyncUpdatesAvailable,
+    });
+
+    if (fireEventResponse.IsSuccessStatusCode is false)
+    {
+      return Results.InternalServerError(fireEventResponse.Error?.ErrorMessage);
+    }
+
+    return Results.Ok(new { fireEventResponse.RequestId, fireEventResponse.WebhookFired });
+  }
+}

src/FiscalOS.API/Transactions/FireWebhook/Request.cs

@@ -0,0 +1,7 @@
+namespace FiscalOS.API.Transactions.FireWebhook;
+
+public sealed record Request(
+  string AccountId,
+  string WebhookType,
+  string WebhookCode
+);

src/FiscalOS.API/Transactions/Get/Endpoint.cs

@@ -0,0 +1,53 @@
+namespace FiscalOS.API.Transactions.Get;
+
+internal static class Endpoint
+{
+  private const string Route = "/";
+
+  public static RouteHandlerBuilder MapGetEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapGet(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    HttpContext httpContext,
+    PagedQuery pagedQuery,
+    [FromServices] AppDbContext appDbContext,
+    CancellationToken ct
+  )
+  {
+    var pagedQueryValidationResults = pagedQuery.Validate();
+
+    if (pagedQueryValidationResults.Count is not 0)
+    {
+      return Results.ValidationProblem(pagedQueryValidationResults);
+    }
+
+    var userId = httpContext.GetUserId();
+    var query = appDbContext.Transactions
+      .Where(t => t.UserId == userId);
+
+    var transactions = await query
+      .Skip((pagedQuery.PageNumber - 1) * pagedQuery.PageSize)
+      .Take(pagedQuery.PageSize)
+      // TODO: Migrate Date to DateTime
+      // to avoid in-memory sorting
+      .AsAsyncEnumerable()
+      .OrderByDescending(t => t.Date)
+      .ToListAsync(ct);
+
+    var count = await query
+      .Where(t => t.UserId == userId)
+      .CountAsync(ct);
+
+    var transactionDtos = transactions.Select(TransactionDto.From).ToArray();
+    var pagedResponse = PagedResponse<TransactionDto>.From(
+      pagedQuery.PageNumber,
+      pagedQuery.PageSize,
+      count,
+      transactionDtos
+    );
+
+    return Results.Ok(pagedResponse);
+  }
+}

src/FiscalOS.API/Transactions/TransactionDto.cs

@@ -0,0 +1,29 @@
+using Transaction = FiscalOS.Core.Transactions.Transaction;
+
+namespace FiscalOS.API.Transactions;
+
+internal sealed record TransactionDto
+{
+  public Guid Id { get; init; }
+  public string MerchantName { get; init; } = string.Empty;
+  public decimal Amount { get; init; }
+  public DateTimeOffset Date { get; init; }
+  public string Description { get; init; } = string.Empty;
+
+  [JsonConstructor]
+  private TransactionDto()
+  {
+  }
+
+  public static TransactionDto From(Transaction transaction)
+  {
+    return new TransactionDto
+    {
+      Id = transaction.Id,
+      MerchantName = transaction.MerchantName,
+      Amount = transaction.Amount,
+      Date = transaction.Date,
+      Description = transaction.Description
+    };
+  }
+}

src/FiscalOS.API/Transactions/TransactionsExtensions.cs

@@ -0,0 +1,28 @@
+using FiscalOS.API.Transactions.DeleteById;
+using FiscalOS.API.Transactions.FireWebhook;
+using FiscalOS.API.Transactions.Get;
+using FiscalOS.API.Transactions.Webhook;
+
+namespace FiscalOS.API.Transactions;
+
+internal static class TransactionsExtensions
+{
+  private const string RouteGroupPrefix = "/transactions";
+
+  public static RouteGroupBuilder MapTransactionsGroup(this WebApplication app)
+  {
+    var transactionsGroup = app.MapGroup(RouteGroupPrefix)
+      .RequireAuthorization();
+
+    transactionsGroup.MapGetEndpoint();
+    transactionsGroup.MapDeleteEndpoint();
+    transactionsGroup.MapWebhookEndpoint().AllowAnonymous();
+
+    if (app.Environment.IsProduction() is false)
+    {
+      transactionsGroup.MapFireWebhookEndpoint();
+    }
+
+    return transactionsGroup;
+  }
+}

src/FiscalOS.API/Transactions/Webhook/Endpoint.cs

@@ -0,0 +1,41 @@
+namespace FiscalOS.API.Transactions.Webhook;
+
+internal static class Endpoint
+{
+  private const string Route = "/webhook";
+
+  public static RouteHandlerBuilder MapWebhookEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapPost(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    [FromBody] WebhookBase request,
+    [FromServices] ILogger<Program> logger,
+    [FromServices] IAsyncQueue<SyncUpdatesQueueItem> queue,
+    CancellationToken ct
+  )
+  {
+    logger.LogInformation(
+      "Received {WebhookType} webhook with {WebhookCode} payload",
+      request.WebhookType,
+      request.WebhookCode
+    );
+
+    switch (request)
+    {
+      case SyncUpdatesAvailableWebhook webhook:
+        await queue.EnqueueAsync(new(webhook.ItemId), ct);
+        logger.LogInformation(
+          "Enqueued {WebhookType} webhook with {WebhookCode} payload",
+          request.WebhookType,
+          request.WebhookCode
+        );
+        break;
+      default:
+        break;
+    }
+
+    return Results.Ok();
+  }
+}

src/FiscalOS.API/Usings.cs

@@ -3,23 +3,26 @@ global using System.Security.Claims;
 global using System.Text.Json.Serialization;
 
 global using FiscalOS.API.Accounts;
-global using FiscalOS.API.Accounts.Add;
 global using FiscalOS.API.Auth;
-global using FiscalOS.API.Auth.Login;
+global using FiscalOS.API.Common;
-global using FiscalOS.API.Auth.Refresh;
 global using FiscalOS.API.Http;
 global using FiscalOS.API.Institutions;
-global using FiscalOS.API.Institutions.Connect;
+global using FiscalOS.API.Transactions;
-global using FiscalOS.API.Institutions.GetAvailable;
-global using FiscalOS.API.Institutions.Link;
-global using FiscalOS.Core.Accounts;
 global using FiscalOS.Core.Authentication;
 global using FiscalOS.Core.Identity;
+global using FiscalOS.Core.Queuing;
 global using FiscalOS.Core.Security;
 global using FiscalOS.Infra.Accounts.Plaid;
 global using FiscalOS.Infra.Authentication;
 global using FiscalOS.Infra.Data;
 global using FiscalOS.Infra.DependencyInjection;
+global using FiscalOS.Infra.Transactions.Plaid;
+global using FiscalOS.ServiceDefaults;
+
+global using Going.Plaid;
+global using Going.Plaid.Converters;
+global using Going.Plaid.Entity;
+global using Going.Plaid.Webhook;
 
 global using Microsoft.AspNetCore.Mvc;
 global using Microsoft.EntityFrameworkCore;

src/FiscalOS.API/appsettings.Example.json

@@ -21,6 +21,12 @@
   },
   "PlaidClientOptions": {
     "ClientId": "ClientId",
-    "Secret": "Secret"
+    "Secret": "Secret",
+    "Webhook": "Webhook"
+  },
+  "SeqOptions": {
+    "ServerUrl": "ServerUrl",
+    "ApiKeyHeader": "ApiKeyHeader",
+    "ApiKey": "ApiKey"
   }
-}
+}

src/FiscalOS.AdminCLI/App.cs

@@ -47,6 +47,52 @@ internal sealed class App(
         var keyRingEntry = await keyRing.SaveKeyAsync(key);
         _console.MarkupLine($"Key generated with id [green]{keyRingEntry.KeyId}[/] generated successfully.");
         break;
+      case Commands.RemoveInstitution:
+        var institutionId = await _console.AskAsync<string>("Enter the [green]institution id[/] of the item you want to remove:", cancellationToken);
+
+        var institution = await appDbContext.Institutions
+          .Include(i => i.User)
+          .Include(i => i.Metadata)
+          .FirstOrDefaultAsync(cancellationToken);
+
+        if (institution is null)
+        {
+          _console.MarkupLine($"Institution with id [green]{institutionId}[/] not found.");
+          break;
+        }
+
+        if (institution.User is null)
+        {
+          _console.MarkupLine($"Institution with id [green]{institutionId}[/] has no user.");
+          break;
+        }
+
+        if (institution.Metadata is not PlaidInstitutionMetadata plaidInstitutionMetadata)
+        {
+          _console.MarkupLine($"Institution with id [green]{institutionId}[/] has no plaid metadata.");
+          break;
+        }
+
+        var accessToken = await encryptor.DecryptAsyncFor(institution.User, plaidInstitutionMetadata.EncryptedAccessToken, cancellationToken);
+
+        var plaidClient = scope.ServiceProvider.GetRequiredService<PlaidClient>();
+
+        var removeItemResponse = await plaidClient.ItemRemoveAsync(new()
+        {
+          AccessToken = accessToken,
+        });
+
+        if (removeItemResponse.IsSuccessStatusCode is false)
+        {
+          _console.MarkupLine($"Failed to remove item for institution id [green]{institutionId}[/]. Plaid error: {removeItemResponse.Error?.ErrorMessage}");
+          break;
+        }
+
+        appDbContext.Institutions.Remove(institution);
+        await appDbContext.SaveChangesAsync(cancellationToken);
+
+        _console.MarkupLine($"Institution with id [green]{institutionId}[/] removed successfully.");
+        break;
       case Commands.Exit:
       default:
         break;

src/FiscalOS.AdminCLI/Commands.cs

@@ -4,11 +4,13 @@ internal static class Commands
 {
   public const string CreateUser = "Create User";
   public const string GenerateKey = "Generate Key";
+  public const string RemoveInstitution = "Remove Institution";
   public const string Exit = "Exit";
 
   public static readonly string[] All = [
     CreateUser,
     GenerateKey,
+    RemoveInstitution,
     Exit
   ];
 }

src/FiscalOS.AdminCLI/FiscalOS.AdminCLI.csproj

@@ -2,6 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
+    <AssemblyName>fiscaloscli</AssemblyName>
   </PropertyGroup>
 
   <ItemGroup>

src/FiscalOS.AdminCLI/Program.cs

@@ -1,7 +1,7 @@
 await Host.CreateDefaultBuilder(args)
   .ConfigureAppConfiguration(
     static c => c.SetBasePath(AppContext.BaseDirectory)
-      .AddJsonFile("appsettings.json")
+      .AddJsonFile("appsettings.json", optional: true)
       .AddEnvironmentVariables()
   )
   .ConfigureLogging(static c => c.ClearProviders())

src/FiscalOS.AdminCLI/Usings.cs

@@ -2,9 +2,13 @@ global using FiscalOS.AdminCLI;
 global using FiscalOS.Core.Authentication;
 global using FiscalOS.Core.Identity;
 global using FiscalOS.Core.Security;
+global using FiscalOS.Infra.Accounts.Plaid;
 global using FiscalOS.Infra.Data;
 global using FiscalOS.Infra.DependencyInjection;
 
+global using Going.Plaid;
+
+global using Microsoft.EntityFrameworkCore;
 global using Microsoft.Extensions.Configuration;
 global using Microsoft.Extensions.DependencyInjection;
 global using Microsoft.Extensions.Hosting;

src/FiscalOS.AppHost/AppHost.cs

@@ -1,10 +1,12 @@
+using FiscalOS.AppHost;
+
 var builder = DistributedApplication.CreateBuilder(args);
 
-var api = builder.AddProject<Projects.FiscalOS_API>("API")
+var api = builder.AddProject<Projects.FiscalOS_API>(ProjectNames.API)
   .WithHttpHealthCheck("/health");
 
-builder.AddViteApp("web", "../FiscalOS.Web")
+builder.AddViteApp(ProjectNames.Web, "../FiscalOS.Web")
   .WithReference(api)
   .WithHttpsEndpoint(port: 7061, env: "PORT");
 
-builder.Build().Run();
+builder.Build().Run();

src/FiscalOS.AppHost/FiscalOS.AppHost.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Aspire.AppHost.Sdk/13.1.1">
+<Project Sdk="Aspire.AppHost.Sdk/13.1.2">
 
   <ItemGroup>
     <ProjectReference Include="..\FiscalOS.API\FiscalOS.API.csproj" />

src/FiscalOS.AppHost/ProjectNames.cs

@@ -0,0 +1,7 @@
+namespace FiscalOS.AppHost;
+
+public static class ProjectNames
+{
+  public const string API = "api";
+  public const string Web = "web";
+}

src/FiscalOS.Core/Accounts/Account.cs

@@ -11,11 +11,20 @@ public sealed class Account : Entity
   private readonly List<Balance> _balances = [];
   public IEnumerable<Balance> Balances => _balances;
 
-  public static Account From(Guid institutionId, string name, AccountMetadata accountMetadata)
+  private readonly List<Transaction> _transactions = [];
+  public IEnumerable<Transaction> Transactions => _transactions;
+
+  private Account()
+  {
+  }
+
+  public static Account From(
+    string name,
+    AccountMetadata accountMetadata
+  )
   {
     return new()
     {
-      InstitutionId = institutionId,
       Name = name,
       Metadata = accountMetadata,
     };
@@ -23,8 +32,15 @@ public sealed class Account : Entity
 
   public void AddBalance(Balance balance)
   {
-    ArgumentNullException.ThrowIfNull(balance);
+    ArgumentNullException.ThrowIfNull(balance, nameof(balance));
 
     _balances.Add(balance);
   }
+
+  public void AddTransaction(Transaction transaction)
+  {
+    ArgumentNullException.ThrowIfNull(transaction, nameof(transaction));
+
+    _transactions.Add(transaction);
+  }
 }

src/FiscalOS.Core/Accounts/Balance.cs

@@ -17,6 +17,8 @@ public sealed class Balance : Entity
     string currencyCode
   )
   {
+    ArgumentNullException.ThrowIfNull(currencyCode, nameof(currencyCode));
+
     return new()
     {
       Current = current,

src/FiscalOS.Core/Accounts/Institution.cs

@@ -3,9 +3,13 @@ namespace FiscalOS.Core.Accounts;
 public sealed class Institution : Entity
 {
   public Guid UserId { get; init; }
+  public User? User { get; init; }
   public string Name { get; init; } = string.Empty;
   public InstitutionMetadata? Metadata { get; init; }
 
+  private readonly List<Account> _accounts = [];
+  public IEnumerable<Account> Accounts => _accounts;
+
   private Institution()
   {
   }
@@ -21,4 +25,11 @@ public sealed class Institution : Entity
       Metadata = metadata
     };
   }
+
+  public void AddAccount(Account account)
+  {
+    ArgumentNullException.ThrowIfNull(account, nameof(account));
+
+    _accounts.Add(account);
+  }
 }

src/FiscalOS.Core/Identity/User.cs

@@ -16,6 +16,9 @@ public sealed class User : Entity
   private readonly List<Account> _accounts = [];
   public IEnumerable<Account> Accounts => _accounts;
 
+  private readonly List<Transaction> _transactions = [];
+  public IEnumerable<Transaction> Transactions => _transactions;
+
   private User()
   {
   }
@@ -60,4 +63,11 @@ public sealed class User : Entity
 
     _accounts.Add(account);
   }
+
+  public void AddTransaction(Transaction transaction)
+  {
+    ArgumentNullException.ThrowIfNull(transaction, nameof(transaction));
+
+    _transactions.Add(transaction);
+  }
 }

src/FiscalOS.Core/Queuing/IAsyncQueue.cs

@@ -0,0 +1,8 @@
+namespace FiscalOS.Core.Queuing;
+
+public interface IAsyncQueue<T>
+{
+  Task EnqueueAsync(T item, CancellationToken cancellationToken = default);
+  Task<T> DequeueAsync(CancellationToken cancellationToken = default);
+  ValueTask DisposeAsync();
+}

src/FiscalOS.Core/Queuing/IAsyncQueueProcessor.cs

@@ -0,0 +1,6 @@
+namespace FiscalOS.Core.Queuing;
+
+public interface IAsyncQueueProcessor<T>
+{
+  Task ProcessAsync(T item, CancellationToken cancellationToken = default);
+}

src/FiscalOS.Core/Transactions/Transaction.cs

@@ -0,0 +1,82 @@
+namespace FiscalOS.Core.Transactions;
+
+public sealed class Transaction : Entity
+{
+  public Guid UserId { get; private set; }
+  public User? User { get; init; }
+
+  public Guid AccountId { get; init; }
+  public Account? Account { get; init; }
+
+  public string MerchantName { get; private set; } = string.Empty;
+  public string Description { get; init; } = string.Empty;
+  public decimal Amount { get; init; }
+  public DateTimeOffset Date { get; init; }
+
+  public TransactionMetadata? Metadata { get; init; }
+
+  private Transaction()
+  {
+  }
+
+  public static Transaction From(
+    string merchantName,
+    string description,
+    decimal? amount,
+    DateTimeOffset? date,
+    TransactionMetadata metadata
+  )
+  {
+    return From(Guid.Empty, Guid.Empty, Guid.Empty, merchantName, description, amount, date, metadata);
+  }
+
+  public static Transaction From(
+    Guid userId,
+    Guid accountId,
+    string merchantName,
+    string description,
+    decimal? amount,
+    DateTimeOffset? date,
+    TransactionMetadata metadata
+  )
+  {
+    return From(Guid.Empty, userId, accountId, merchantName, description, amount, date, metadata);
+  }
+
+  public static Transaction From(
+    Guid id,
+    Guid userId,
+    Guid accountId,
+    string merchantName,
+    string description,
+    decimal? amount,
+    DateTimeOffset? date,
+    TransactionMetadata metadata
+  )
+  {
+    ArgumentNullException.ThrowIfNull(merchantName, nameof(merchantName));
+    ArgumentNullException.ThrowIfNull(description, nameof(description));
+
+    if (amount.HasValue is false)
+    {
+      throw new ArgumentNullException(nameof(amount));
+    }
+
+    if (date.HasValue is false)
+    {
+      throw new ArgumentNullException(nameof(date));
+    }
+
+    return new()
+    {
+      Id = id,
+      UserId = userId,
+      AccountId = accountId,
+      MerchantName = merchantName,
+      Description = description,
+      Amount = amount.Value,
+      Date = date.Value,
+      Metadata = metadata,
+    };
+  }
+}

src/FiscalOS.Core/Transactions/TransactionMetadata.cs

@@ -0,0 +1,15 @@
+namespace FiscalOS.Core.Transactions;
+
+public abstract class TransactionMetadata : Entity
+{
+  private readonly string _type;
+
+  public string Type => _type;
+
+  public Guid TransactionId { get; init; }
+
+  protected TransactionMetadata(string type)
+  {
+    _type = type;
+  }
+}

src/FiscalOS.Core/Usings.cs

@@ -1,4 +1,5 @@
 global using FiscalOS.Core.Accounts;
 global using FiscalOS.Core.Data;
 global using FiscalOS.Core.Identity;
-global using FiscalOS.Core.Security;
+global using FiscalOS.Core.Security;
+global using FiscalOS.Core.Transactions;

src/FiscalOS.Infra/.editorconfig

@@ -1,4 +1,4 @@
 [*.cs]
 
 dotnet_diagnostic.CA1062.severity = none
-dotnet_diagnostic.CA5404.severity = none
+dotnet_diagnostic.CA5404.severity = none

src/FiscalOS.Infra/Accounts/Plaid/PlaidAccountMetadata.cs

@@ -5,12 +5,16 @@ public sealed class PlaidAccountMetadata : AccountMetadata
   public const string TypeValue = Providers.Plaid;
   public string PlaidId { get; init; } = string.Empty;
   public string PlaidName { get; init; } = string.Empty;
+  public string? Cursor { get; private set; }
 
   private PlaidAccountMetadata() : base(TypeValue)
   {
   }
 
-  public static PlaidAccountMetadata From(string plaidId, string plaidName)
+  public static PlaidAccountMetadata From(
+    string plaidId,
+    string plaidName
+  )
   {
     return new()
     {
@@ -18,4 +22,11 @@ public sealed class PlaidAccountMetadata : AccountMetadata
       PlaidName = plaidName,
     };
   }
+
+  public void SetCursor(string cursor)
+  {
+    ArgumentException.ThrowIfNullOrWhiteSpace(cursor, nameof(cursor));
+
+    Cursor = cursor;
+  }
 }

src/FiscalOS.Infra/Accounts/Plaid/PlaidAccountService.cs

@@ -0,0 +1,119 @@
+namespace FiscalOS.Infra.Accounts.Plaid;
+
+public interface IPlaidAccountService
+{
+  Task<string> CreateLinkTokenAsync(string id);
+  Task<(string ItemId, string AccessToken)> ExchangeTokenAsync(string publicToken);
+  Task<List<Going.Plaid.Entity.Account>> GetAccountsAsync(string accessToken);
+  Task<ItemWithConsentFields> GetItemAsync(string accessToken);
+}
+
+internal sealed class PlaidAccountService : IPlaidAccountService
+{
+  private readonly IOptions<PlaidClientOptions> _options;
+  private readonly PlaidClient _client;
+
+  private PlaidAccountService(PlaidClient client, IOptions<PlaidClientOptions> options)
+  {
+    _client = client;
+    _options = options;
+  }
+
+  public static PlaidAccountService From(IServiceProvider sp)
+  {
+    var client = sp.GetRequiredService<PlaidClient>();
+    var options = sp.GetRequiredService<IOptions<PlaidClientOptions>>();
+    return new(client, options);
+  }
+
+  public async Task<string> CreateLinkTokenAsync(string id)
+  {
+    var assemblyName = Assembly.GetExecutingAssembly().GetName().FullName;
+    var environmentName = System.Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
+
+    var linkTokenResponse = await _client.LinkTokenCreateAsync(new()
+    {
+      ClientName = $"{assemblyName}_{environmentName}",
+      Products = [Products.Transactions],
+      CountryCodes = [CountryCode.Us],
+      Language = Language.English,
+      User = new()
+      {
+        ClientUserId = id,
+      },
+      Webhook = _options.Value.Webhook,
+    }).ConfigureAwait(false);
+
+    if (linkTokenResponse.IsSuccessStatusCode is false)
+    {
+      throw new PlaidException(
+        "Unable to create link token",
+        linkTokenResponse.Error,
+        linkTokenResponse.RequestId,
+        (int?)linkTokenResponse.StatusCode
+      );
+    }
+
+    return linkTokenResponse.LinkToken;
+  }
+
+  public async Task<(string ItemId, string AccessToken)> ExchangeTokenAsync(string publicToken)
+  {
+    var publicTokenResponse = await _client.ItemPublicTokenExchangeAsync(new()
+    {
+      PublicToken = publicToken,
+    }).ConfigureAwait(false);
+
+    if (publicTokenResponse.IsSuccessStatusCode is false)
+    {
+      throw new PlaidException(
+        "Unable to exchange public token for access token",
+        publicTokenResponse.Error,
+        publicTokenResponse.RequestId,
+        (int?)publicTokenResponse.StatusCode
+      );
+    }
+
+    return (publicTokenResponse.ItemId, publicTokenResponse.AccessToken);
+  }
+
+  public async Task<List<Going.Plaid.Entity.Account>> GetAccountsAsync(string accessToken)
+  {
+    var accountResponse = await _client.AccountsGetAsync(new()
+    {
+      AccessToken = accessToken,
+    }).ConfigureAwait(false);
+
+    if (accountResponse.IsSuccessStatusCode is false)
+    {
+      throw new PlaidException(
+        "Unable to retrieve accounts",
+        accountResponse.Error,
+        accountResponse.RequestId,
+        (int?)accountResponse.StatusCode
+      );
+    }
+
+    return [.. accountResponse.Accounts];
+  }
+
+  public async Task<ItemWithConsentFields> GetItemAsync(string accessToken)
+  {
+    var itemResponse = await _client.ItemGetAsync(new()
+    {
+      AccessToken = accessToken,
+    }).ConfigureAwait(false);
+
+    if (itemResponse.IsSuccessStatusCode is false)
+    {
+      throw new PlaidException(
+        "Unable to retrieve item",
+        itemResponse.Error,
+        itemResponse.RequestId,
+        (int?)itemResponse.StatusCode
+      );
+    }
+
+    return itemResponse.Item;
+  }
+}

src/FiscalOS.Infra/Accounts/Plaid/PlaidClientOptions.cs

@@ -4,6 +4,7 @@ public sealed record PlaidClientOptions
 {
   public string ClientId { get; init; } = string.Empty;
   public string Secret { get; init; } = string.Empty;
+  public string Webhook { get; init; } = string.Empty;
 
   public IOptions<PlaidOptions> ToPlaidOptions()
   {

src/FiscalOS.Infra/Accounts/Plaid/PlaidException.cs

@@ -1,16 +0,0 @@
-namespace FiscalOS.Infra.Accounts.Plaid;
-
-public class PlaidException : Exception
-{
-  public PlaidException()
-  {
-  }
-
-  public PlaidException(string message) : base(message)
-  {
-  }
-
-  public PlaidException(string message, Exception innerException) : base(message, innerException)
-  {
-  }
-}

src/FiscalOS.Infra/Accounts/Plaid/PlaidInstitutionMetadata.cs

@@ -1,31 +1,35 @@
 namespace FiscalOS.Infra.Accounts.Plaid;
 
-public sealed class PlaidMetadata : InstitutionMetadata
+public sealed class PlaidInstitutionMetadata : InstitutionMetadata
 {
   public const string TypeValue = Providers.Plaid;
   public string PlaidId { get; init; } = string.Empty;
   public string PlaidName { get; init; } = string.Empty;
   public string EncryptedAccessToken { get; init; } = string.Empty;
+  public string ItemId { get; init; } = string.Empty;
 
-  private PlaidMetadata() : base(TypeValue)
+  private PlaidInstitutionMetadata() : base(TypeValue)
   {
   }
 
-  public static PlaidMetadata From(
+  public static PlaidInstitutionMetadata From(
     string? plaidId,
     string? plaidName,
-    string encryptedAccessToken
+    string encryptedAccessToken,
+    string itemId
   )
   {
     ArgumentNullException.ThrowIfNull(plaidId, nameof(plaidId));
     ArgumentNullException.ThrowIfNull(plaidName, nameof(plaidName));
     ArgumentNullException.ThrowIfNull(encryptedAccessToken, nameof(encryptedAccessToken));
+    ArgumentNullException.ThrowIfNull(itemId, nameof(itemId));
 
-    return new PlaidMetadata
+    return new()
     {
       PlaidId = plaidId,
       PlaidName = plaidName,
-      EncryptedAccessToken = encryptedAccessToken
+      EncryptedAccessToken = encryptedAccessToken,
+      ItemId = itemId,
     };
   }
 }

src/FiscalOS.Infra/Accounts/Plaid/PlaidService.cs

@@ -1,91 +0,0 @@
-
-
-using System.Reflection;
-
-namespace FiscalOS.Infra.Accounts.Plaid;
-
-public sealed class PlaidService
-{
-  private readonly PlaidClient _client;
-
-  private PlaidService(PlaidClient client)
-  {
-    _client = client;
-  }
-
-  public static PlaidService From(IServiceProvider sp)
-  {
-    var client = sp.GetRequiredService<PlaidClient>();
-    return new(client);
-  }
-
-  public async Task<string> CreateLinkTokenAsync(string id)
-  {
-    var assemblyName = Assembly.GetExecutingAssembly().GetName().FullName;
-    var environmentName = System.Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
-
-    var ltr = await _client.LinkTokenCreateAsync(new()
-    {
-      ClientName = $"{assemblyName}_{environmentName}",
-      Products = [Products.Transactions],
-      CountryCodes = [CountryCode.Us],
-      Language = Language.English,
-      User = new()
-      {
-        ClientUserId = id,
-      },
-    }).ConfigureAwait(false);
-
-    if (ltr.IsSuccessStatusCode is false)
-    {
-      throw new PlaidException("Unable to create link token");
-    }
-
-    return ltr.LinkToken;
-  }
-
-  public async Task<(string ItemId, string AccessToken)> ExchangeTokenAsync(string publicToken)
-  {
-    var ptr = await _client.ItemPublicTokenExchangeAsync(new()
-    {
-      PublicToken = publicToken,
-    }).ConfigureAwait(false);
-
-    if (ptr.IsSuccessStatusCode is false)
-    {
-      throw new PlaidException("Unable to exchange public token for access token");
-    }
-
-    return (ptr.ItemId, ptr.AccessToken);
-  }
-
-  public async Task<List<Going.Plaid.Entity.Account>> GetAccountsAsync(string accessToken)
-  {
-    var ar = await _client.AccountsGetAsync(new()
-    {
-      AccessToken = accessToken,
-    }).ConfigureAwait(false);
-
-    if (ar.IsSuccessStatusCode is false)
-    {
-      throw new PlaidException("Unable to retrieve accounts");
-    }
-
-    return [.. ar.Accounts];
-  }
-
-  public async Task<ItemWithConsentFields> GetItemAsync(string accessToken)
-  {
-    var ar = await _client.ItemGetAsync(new()
-    {
-      AccessToken = accessToken,
-    }).ConfigureAwait(false);
-
-    if (ar.IsSuccessStatusCode is false)
-    {
-      throw new PlaidException("Unable to retrieve item");
-    }
-
-    return ar.Item;
-  }
-}

src/FiscalOS.Infra/Common/PlaidException.cs

@@ -0,0 +1,53 @@
+namespace FiscalOS.Infra.Common;
+
+public class PlaidException : Exception
+{
+  public PlaidError? Error { get; }
+  public string? RequestId { get; }
+  public int? StatusCode { get; }
+  public string? ErrorCode => Error?.ErrorCode;
+  public string? ErrorType => Error?.ErrorType;
+  public string? ErrorMessage => Error?.ErrorMessage;
+
+  public PlaidException()
+  {
+  }
+
+  public PlaidException(string message) : base(message)
+  {
+  }
+
+  public PlaidException(string message, Exception innerException) : base(message, innerException)
+  {
+  }
+
+  public PlaidException(
+    string message,
+    PlaidError? error = null,
+    string? plaidRequestId = null,
+    int? statusCode = null,
+    Exception? innerException = null
+  ) : base(message, innerException)
+  {
+    Error = error;
+    RequestId = plaidRequestId;
+    StatusCode = statusCode;
+
+    if (error is not null)
+    {
+      Data[nameof(ErrorCode)] = error.ErrorCode;
+      Data[nameof(ErrorType)] = error.ErrorType;
+      Data[nameof(ErrorMessage)] = error.ErrorMessage;
+    }
+
+    if (plaidRequestId is not null)
+    {
+      Data[nameof(RequestId)] = plaidRequestId;
+    }
+
+    if (statusCode is not null)
+    {
+      Data[nameof(StatusCode)] = statusCode;
+    }
+  }
+}

src/FiscalOS.Infra/Common/Providers.cs

@@ -1,4 +1,4 @@
-namespace FiscalOS.Infra.Accounts;
+namespace FiscalOS.Infra.Common;
 
 public static class Providers
 {

src/FiscalOS.Infra/Data/AppDbContext.cs

@@ -1,5 +1,6 @@
 using Account = FiscalOS.Core.Accounts.Account;
 using Institution = FiscalOS.Core.Accounts.Institution;
+using Transaction = FiscalOS.Core.Transactions.Transaction;
 
 namespace FiscalOS.Infra.Data;
 
@@ -14,6 +15,8 @@ public sealed class AppDbContext(
 
   public DbSet<User> Users => Set<User>();
   public DbSet<RefreshToken> RefreshTokens => Set<RefreshToken>();
+  public DbSet<Institution> Institutions => Set<Institution>();
+  public DbSet<Transaction> Transactions => Set<Transaction>();
 
   protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
   {
@@ -63,7 +66,7 @@ public sealed class AppDbContext(
         .OnDelete(DeleteBehavior.Cascade);
 
       eb.HasMany(static u => u.Institutions)
-        .WithOne()
+        .WithOne(static i => i.User)
         .HasForeignKey(static i => i.UserId)
         .OnDelete(DeleteBehavior.Cascade);
 
@@ -96,19 +99,20 @@ public sealed class AppDbContext(
     modelBuilder.Entity<InstitutionMetadata>(static eb =>
     {
       eb.HasDiscriminator(static m => m.Type)
-        .HasValue<PlaidMetadata>(PlaidMetadata.TypeValue);
+        .HasValue<PlaidInstitutionMetadata>(PlaidInstitutionMetadata.TypeValue);
 
       eb.Property(static m => m.InstitutionId);
       eb.Property(static m => m.Type);
     });
 
-    modelBuilder.Entity<PlaidMetadata>(static eb =>
+    modelBuilder.Entity<PlaidInstitutionMetadata>(static eb =>
     {
       eb.HasBaseType<InstitutionMetadata>();
 
       eb.Property(static m => m.PlaidId);
       eb.Property(static m => m.PlaidName);
       eb.Property(static m => m.EncryptedAccessToken);
+      eb.Property(static m => m.ItemId);
     });
 
     modelBuilder.Entity<Account>(static eb =>
@@ -116,7 +120,7 @@ public sealed class AppDbContext(
       eb.Property(static a => a.Name);
 
       eb.HasOne(static a => a.Institution)
-        .WithMany()
+        .WithMany(static i => i.Accounts)
         .HasForeignKey(static a => a.InstitutionId)
         .OnDelete(DeleteBehavior.Cascade);
 
@@ -146,6 +150,7 @@ public sealed class AppDbContext(
 
       eb.Property(static m => m.PlaidId);
       eb.Property(static m => m.PlaidName);
+      eb.Property(static m => m.Cursor);
     });
 
     modelBuilder.Entity<Balance>(static eb =>
@@ -155,5 +160,40 @@ public sealed class AppDbContext(
       eb.Property(static b => b.Available);
       eb.Property(static b => b.CurrencyCode);
     });
+
+    modelBuilder.Entity<Transaction>(static eb =>
+    {
+      eb.HasOne(static t => t.User)
+        .WithMany(static u => u.Transactions)
+        .HasForeignKey(static t => t.UserId)
+        .OnDelete(DeleteBehavior.Cascade);
+
+      eb.HasOne(static t => t.Account)
+        .WithMany(static a => a.Transactions)
+        .HasForeignKey(static t => t.AccountId)
+        .OnDelete(DeleteBehavior.Cascade);
+
+      eb.Property(static t => t.MerchantName);
+      eb.Property(static t => t.Description);
+      eb.Property(static t => t.Amount);
+      eb.Property(static t => t.Date);
+    });
+
+    modelBuilder.Entity<TransactionMetadata>(static eb =>
+    {
+      eb.HasDiscriminator(static m => m.Type)
+        .HasValue(PlaidTransactionMetadata.TypeValue);
+
+      eb.Property(static m => m.TransactionId);
+      eb.Property(static m => m.Type);
+    });
+
+    modelBuilder.Entity<PlaidTransactionMetadata>(static eb =>
+    {
+      eb.HasDiscriminator(static m => m.Type)
+        .HasValue(PlaidTransactionMetadata.TypeValue);
+
+      eb.Property(static m => m.PlaidId);
+    });
   }
 }

src/FiscalOS.Infra/DependencyInjection/ServiceCollectionExtensions.cs

@@ -1,3 +1,5 @@
+using Microsoft.AspNetCore.Hosting;
+
 namespace FiscalOS.Infra.DependencyInjection;
 
 public static class ServiceCollectionExtensions
@@ -31,9 +33,28 @@ public static class ServiceCollectionExtensions
       var logger = sp.GetRequiredService<ILogger<PlaidClient>>();
       var clientOptions = sp.GetRequiredService<IOptions<PlaidClientOptions>>();
       var options = clientOptions.Value.ToPlaidOptions();
+
+      var env = System.Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
+
+      if (env is not null && env.Equals("Production", StringComparison.OrdinalIgnoreCase))
+      {
+        options.Value.Environment = Going.Plaid.Environment.Production;
+      }
+
       return new PlaidClient(options, factory, logger);
     });
-    services.AddSingleton(PlaidService.From);
+    services.AddSingleton<IPlaidAccountService>(PlaidAccountService.From);
+    services.AddSingleton<IPlaidTransactionService>(PlaidTransactionService.From);
+
+    services.AddScoped<IPlaidAddedTransactionHandler>(PlaidAddedTransactionHandler.From);
+    services.AddScoped<IPlaidModifiedTransactionHandler>(PlaidModifiedTransactionHandler.From);
+    services.AddScoped<IPlaidRemovedTransactionHandler>(PlaidRemovedTransactionHandler.From);
+    services.AddScoped<IPlaidTransactionProcessor>(PlaidTransactionProcessor.From);
+    services.AddScoped<IPlaidTransactionSyncer>(PlaidTransactionSyncer.From);
+
+    services.AddSingleton<IAsyncQueue<SyncUpdatesQueueItem>>(ChannelAsyncQueue<SyncUpdatesQueueItem>.From);
+    services.AddScoped<IAsyncQueueProcessor<SyncUpdatesQueueItem>>(SyncUpdatesProcessor.From);
+    services.AddHostedService(AsyncQueueHostedService<SyncUpdatesQueueItem>.From);
 
     return services;
   }

src/FiscalOS.Infra/Migrations/20260212215015_InstitutionAndMetadata.cs

@@ -1,6 +1,4 @@
-using System;
+using Microsoft.EntityFrameworkCore.Migrations;
-
-using Microsoft.EntityFrameworkCore.Migrations;
 
 #nullable disable
 

src/FiscalOS.Infra/Migrations/20260213130218_AccountAndMetadata.cs

@@ -1,6 +1,4 @@
-using System;
+using Microsoft.EntityFrameworkCore.Migrations;
-
-using Microsoft.EntityFrameworkCore.Migrations;
 
 #nullable disable
 

src/FiscalOS.Infra/Migrations/20260214112234_AddBalancesWithConnectionToAccounts.cs

@@ -1,6 +1,4 @@
-using System;
+using Microsoft.EntityFrameworkCore.Migrations;
-
-using Microsoft.EntityFrameworkCore.Migrations;
 
 #nullable disable
 

src/FiscalOS.Infra/Migrations/20260226123411_AddItemIdToPlaidMetadata.Designer.cs

@@ -0,0 +1,374 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260226123411_AddItemIdToPlaidMetadata")]
+    partial class AddItemIdToPlaidMetadata
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260226123411_AddItemIdToPlaidMetadata.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddItemIdToPlaidMetadata : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "ItemId",
+                table: "InstitutionMetadata",
+                type: "TEXT",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "ItemId",
+                table: "InstitutionMetadata");
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260226131150_AddNavigationPropertyToInstitutionForUser.Designer.cs

@@ -0,0 +1,376 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260226131150_AddNavigationPropertyToInstitutionForUser")]
+    partial class AddNavigationPropertyToInstitutionForUser
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260226131150_AddNavigationPropertyToInstitutionForUser.cs

@@ -0,0 +1,126 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddNavigationPropertyToInstitutionForUser : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Account_Institution_InstitutionId",
+                table: "Account");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Institution_Users_UserId",
+                table: "Institution");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_InstitutionMetadata_Institution_InstitutionId",
+                table: "InstitutionMetadata");
+
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_Institution",
+                table: "Institution");
+
+            migrationBuilder.RenameTable(
+                name: "Institution",
+                newName: "Institutions");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Institution_UserId",
+                table: "Institutions",
+                newName: "IX_Institutions_UserId");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_Institutions",
+                table: "Institutions",
+                column: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Account_Institutions_InstitutionId",
+                table: "Account",
+                column: "InstitutionId",
+                principalTable: "Institutions",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_InstitutionMetadata_Institutions_InstitutionId",
+                table: "InstitutionMetadata",
+                column: "InstitutionId",
+                principalTable: "Institutions",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Institutions_Users_UserId",
+                table: "Institutions",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Account_Institutions_InstitutionId",
+                table: "Account");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_InstitutionMetadata_Institutions_InstitutionId",
+                table: "InstitutionMetadata");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Institutions_Users_UserId",
+                table: "Institutions");
+
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_Institutions",
+                table: "Institutions");
+
+            migrationBuilder.RenameTable(
+                name: "Institutions",
+                newName: "Institution");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Institutions_UserId",
+                table: "Institution",
+                newName: "IX_Institution_UserId");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_Institution",
+                table: "Institution",
+                column: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Account_Institution_InstitutionId",
+                table: "Account",
+                column: "InstitutionId",
+                principalTable: "Institution",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Institution_Users_UserId",
+                table: "Institution",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_InstitutionMetadata_Institution_InstitutionId",
+                table: "InstitutionMetadata",
+                column: "InstitutionId",
+                principalTable: "Institution",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260226224648_RenamePlaidMetadataEntity.Designer.cs

@@ -0,0 +1,376 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260226224648_RenamePlaidMetadataEntity")]
+    partial class RenamePlaidMetadataEntity
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260226224648_RenamePlaidMetadataEntity.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class RenamePlaidMetadataEntity : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260228123108_AddTransactionAndTransactionMetadataModels.Designer.cs

@@ -0,0 +1,504 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260228123108_AddTransactionAndTransactionMetadataModels")]
+    partial class AddTransactionAndTransactionMetadataModels
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid?>("AccountId1")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Amount")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MerchantName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.HasIndex("AccountId1");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Transaction");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("TransactionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TransactionId")
+                        .IsUnique();
+
+                    b.ToTable("TransactionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("Plaid");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Transactions.Plaid.PlaidTransactionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Transactions.TransactionMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Transactions")
+                        .HasForeignKey("AccountId1");
+
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Account");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Transactions.Transaction", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Transactions.TransactionMetadata", "TransactionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Navigation("Metadata");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260228123108_AddTransactionAndTransactionMetadataModels.cs

@@ -0,0 +1,104 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddTransactionAndTransactionMetadataModels : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Transaction",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "TEXT", nullable: false),
+                    UserId = table.Column<Guid>(type: "TEXT", nullable: false),
+                    AccountId = table.Column<Guid>(type: "TEXT", nullable: false),
+                    MerchantName = table.Column<string>(type: "TEXT", nullable: false),
+                    Description = table.Column<string>(type: "TEXT", nullable: false),
+                    Amount = table.Column<decimal>(type: "TEXT", nullable: false),
+                    Date = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    AccountId1 = table.Column<Guid>(type: "TEXT", nullable: true),
+                    CreatedAt = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    UpdatedAt = table.Column<DateTimeOffset>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Transaction", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Transaction_Account_AccountId",
+                        column: x => x.AccountId,
+                        principalTable: "Account",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_Transaction_Account_AccountId1",
+                        column: x => x.AccountId1,
+                        principalTable: "Account",
+                        principalColumn: "Id");
+                    table.ForeignKey(
+                        name: "FK_Transaction_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "TransactionMetadata",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "TEXT", nullable: false),
+                    Type = table.Column<string>(type: "TEXT", maxLength: 5, nullable: false),
+                    TransactionId = table.Column<Guid>(type: "TEXT", nullable: false),
+                    PlaidId = table.Column<string>(type: "TEXT", nullable: true),
+                    CreatedAt = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    UpdatedAt = table.Column<DateTimeOffset>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TransactionMetadata", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_TransactionMetadata_Transaction_TransactionId",
+                        column: x => x.TransactionId,
+                        principalTable: "Transaction",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Transaction_AccountId",
+                table: "Transaction",
+                column: "AccountId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Transaction_AccountId1",
+                table: "Transaction",
+                column: "AccountId1");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Transaction_UserId",
+                table: "Transaction",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TransactionMetadata_TransactionId",
+                table: "TransactionMetadata",
+                column: "TransactionId",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "TransactionMetadata");
+
+            migrationBuilder.DropTable(
+                name: "Transaction");
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260301104650_AddCursorToAccountModel.Designer.cs

@@ -0,0 +1,508 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260301104650_AddCursorToAccountModel")]
+    partial class AddCursorToAccountModel
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid?>("AccountId1")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Amount")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MerchantName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.HasIndex("AccountId1");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Transaction");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("TransactionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TransactionId")
+                        .IsUnique();
+
+                    b.ToTable("TransactionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("Plaid");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("Cursor")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Transactions.Plaid.PlaidTransactionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Transactions.TransactionMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Transactions")
+                        .HasForeignKey("AccountId1");
+
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Account");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Transactions.Transaction", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Transactions.TransactionMetadata", "TransactionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Navigation("Metadata");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260301104650_AddCursorToAccountModel.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddCursorToAccountModel : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "Cursor",
+                table: "AccountMetadata",
+                type: "TEXT",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Cursor",
+                table: "AccountMetadata");
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260302015827_AddInstitutionsDbSet.Designer.cs

@@ -0,0 +1,507 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260302015827_AddInstitutionsDbSet")]
+    partial class AddInstitutionsDbSet
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid?>("AccountId1")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Amount")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MerchantName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.HasIndex("AccountId1");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("TransactionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TransactionId")
+                        .IsUnique();
+
+                    b.ToTable("TransactionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("Plaid");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("Cursor")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Transactions.Plaid.PlaidTransactionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Transactions.TransactionMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Transactions")
+                        .HasForeignKey("AccountId1");
+
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Account");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Transactions.Transaction", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Transactions.TransactionMetadata", "TransactionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Navigation("Metadata");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260302015827_AddInstitutionsDbSet.cs

@@ -0,0 +1,168 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddInstitutionsDbSet : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transaction_Account_AccountId",
+                table: "Transaction");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transaction_Account_AccountId1",
+                table: "Transaction");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transaction_Users_UserId",
+                table: "Transaction");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_TransactionMetadata_Transaction_TransactionId",
+                table: "TransactionMetadata");
+
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_Transaction",
+                table: "Transaction");
+
+            migrationBuilder.RenameTable(
+                name: "Transaction",
+                newName: "Transactions");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Transaction_UserId",
+                table: "Transactions",
+                newName: "IX_Transactions_UserId");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Transaction_AccountId1",
+                table: "Transactions",
+                newName: "IX_Transactions_AccountId1");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Transaction_AccountId",
+                table: "Transactions",
+                newName: "IX_Transactions_AccountId");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_Transactions",
+                table: "Transactions",
+                column: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_TransactionMetadata_Transactions_TransactionId",
+                table: "TransactionMetadata",
+                column: "TransactionId",
+                principalTable: "Transactions",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transactions_Account_AccountId",
+                table: "Transactions",
+                column: "AccountId",
+                principalTable: "Account",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transactions_Account_AccountId1",
+                table: "Transactions",
+                column: "AccountId1",
+                principalTable: "Account",
+                principalColumn: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transactions_Users_UserId",
+                table: "Transactions",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_TransactionMetadata_Transactions_TransactionId",
+                table: "TransactionMetadata");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transactions_Account_AccountId",
+                table: "Transactions");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transactions_Account_AccountId1",
+                table: "Transactions");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transactions_Users_UserId",
+                table: "Transactions");
+
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_Transactions",
+                table: "Transactions");
+
+            migrationBuilder.RenameTable(
+                name: "Transactions",
+                newName: "Transaction");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Transactions_UserId",
+                table: "Transaction",
+                newName: "IX_Transaction_UserId");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Transactions_AccountId1",
+                table: "Transaction",
+                newName: "IX_Transaction_AccountId1");
+
+            migrationBuilder.RenameIndex(
+                name: "IX_Transactions_AccountId",
+                table: "Transaction",
+                newName: "IX_Transaction_AccountId");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_Transaction",
+                table: "Transaction",
+                column: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transaction_Account_AccountId",
+                table: "Transaction",
+                column: "AccountId",
+                principalTable: "Account",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transaction_Account_AccountId1",
+                table: "Transaction",
+                column: "AccountId1",
+                principalTable: "Account",
+                principalColumn: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transaction_Users_UserId",
+                table: "Transaction",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_TransactionMetadata_Transaction_TransactionId",
+                table: "TransactionMetadata",
+                column: "TransactionId",
+                principalTable: "Transaction",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260303124406_AddTransactionsNavigationPropertyToUser.Designer.cs

@@ -0,0 +1,518 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260303124406_AddTransactionsNavigationPropertyToUser")]
+    partial class AddTransactionsNavigationPropertyToUser
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid?>("AccountId1")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Amount")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MerchantName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid?>("UserId1")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.HasIndex("AccountId1");
+
+                    b.HasIndex("UserId");
+
+                    b.HasIndex("UserId1");
+
+                    b.ToTable("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("TransactionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TransactionId")
+                        .IsUnique();
+
+                    b.ToTable("TransactionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("Plaid");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("Cursor")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Transactions.Plaid.PlaidTransactionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Transactions.TransactionMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Transactions")
+                        .HasForeignKey("AccountId1");
+
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Transactions")
+                        .HasForeignKey("UserId1");
+
+                    b.Navigation("Account");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Transactions.Transaction", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Transactions.TransactionMetadata", "TransactionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Navigation("Metadata");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260303124406_AddTransactionsNavigationPropertyToUser.cs

@@ -0,0 +1,48 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddTransactionsNavigationPropertyToUser : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<Guid>(
+                name: "UserId1",
+                table: "Transactions",
+                type: "TEXT",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Transactions_UserId1",
+                table: "Transactions",
+                column: "UserId1");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transactions_Users_UserId1",
+                table: "Transactions",
+                column: "UserId1",
+                principalTable: "Users",
+                principalColumn: "Id");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transactions_Users_UserId1",
+                table: "Transactions");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Transactions_UserId1",
+                table: "Transactions");
+
+            migrationBuilder.DropColumn(
+                name: "UserId1",
+                table: "Transactions");
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260303130637_UpdateAppDbContextToIncludeTransactionNavigationProperties.Designer.cs

@@ -0,0 +1,500 @@
+// <auto-generated />
+using System;
+using FiscalOS.Infra.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260303130637_UpdateAppDbContextToIncludeTransactionNavigationProperties")]
+    partial class UpdateAppDbContextToIncludeTransactionNavigationProperties
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "10.0.2");
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Account");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId")
+                        .IsUnique();
+
+                    b.ToTable("AccountMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("AccountMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Available")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("CurrencyCode")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Current")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.ToTable("Balance");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Institutions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("InstitutionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InstitutionId")
+                        .IsUnique();
+
+                    b.ToTable("InstitutionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("InstitutionMetadata");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("Revoked")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptedDataKey")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("EncryptionKeyId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("HashedPassword")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Amount")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MerchantName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("TransactionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TransactionId")
+                        .IsUnique();
+
+                    b.ToTable("TransactionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("Plaid");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
+
+                    b.Property<string>("Cursor")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
+
+                    b.Property<string>("EncryptedAccessToken")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PlaidName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Infra.Transactions.Plaid.PlaidTransactionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Transactions.TransactionMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
+                        .WithMany("Accounts")
+                        .HasForeignKey("InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                        .WithMany("Accounts")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Institution");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.AccountMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.AccountMetadata", "AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Balance", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", null)
+                        .WithMany("Balances")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Institutions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Institution", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Accounts.InstitutionMetadata", "InstitutionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.RefreshToken", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("RefreshTokens")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", "Account")
+                        .WithMany("Transactions")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Transactions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Account");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Transactions.Transaction", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Transactions.TransactionMetadata", "TransactionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
+                {
+                    b.Navigation("Balances");
+
+                    b.Navigation("Metadata");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Metadata");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Identity.User", b =>
+                {
+                    b.Navigation("Accounts");
+
+                    b.Navigation("Institutions");
+
+                    b.Navigation("RefreshTokens");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Navigation("Metadata");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/20260303130637_UpdateAppDbContextToIncludeTransactionNavigationProperties.cs

@@ -0,0 +1,78 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace FiscalOS.Infra.Migrations
+{
+    /// <inheritdoc />
+    public partial class UpdateAppDbContextToIncludeTransactionNavigationProperties : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transactions_Account_AccountId1",
+                table: "Transactions");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_Transactions_Users_UserId1",
+                table: "Transactions");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Transactions_AccountId1",
+                table: "Transactions");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Transactions_UserId1",
+                table: "Transactions");
+
+            migrationBuilder.DropColumn(
+                name: "AccountId1",
+                table: "Transactions");
+
+            migrationBuilder.DropColumn(
+                name: "UserId1",
+                table: "Transactions");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<Guid>(
+                name: "AccountId1",
+                table: "Transactions",
+                type: "TEXT",
+                nullable: true);
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "UserId1",
+                table: "Transactions",
+                type: "TEXT",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Transactions_AccountId1",
+                table: "Transactions",
+                column: "AccountId1");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Transactions_UserId1",
+                table: "Transactions",
+                column: "UserId1");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transactions_Account_AccountId1",
+                table: "Transactions",
+                column: "AccountId1",
+                principalTable: "Account",
+                principalColumn: "Id");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Transactions_Users_UserId1",
+                table: "Transactions",
+                column: "UserId1",
+                principalTable: "Users",
+                principalColumn: "Id");
+        }
+    }
+}

src/FiscalOS.Infra/Migrations/AppDbContextModelSnapshot.cs

@@ -135,7 +135,7 @@ namespace FiscalOS.Infra.Migrations
 
                     b.HasIndex("UserId");
 
-                    b.ToTable("Institution");
+                    b.ToTable("Institutions");
                 });
 
             modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
@@ -241,10 +241,86 @@ namespace FiscalOS.Infra.Migrations
                     b.ToTable("Users");
                 });
 
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("AccountId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("Amount")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("Date")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MerchantName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AccountId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid>("TransactionId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(5)
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TransactionId")
+                        .IsUnique();
+
+                    b.ToTable("TransactionMetadata");
+
+                    b.HasDiscriminator<string>("Type").HasValue("Plaid");
+
+                    b.UseTphMappingStrategy();
+                });
+
             modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidAccountMetadata", b =>
                 {
                     b.HasBaseType("FiscalOS.Core.Accounts.AccountMetadata");
 
+                    b.Property<string>("Cursor")
+                        .HasColumnType("TEXT");
+
                     b.Property<string>("PlaidId")
                         .IsRequired()
                         .HasColumnType("TEXT");
@@ -256,7 +332,7 @@ namespace FiscalOS.Infra.Migrations
                     b.HasDiscriminator().HasValue("Plaid");
                 });
 
-            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidMetadata", b =>
+            modelBuilder.Entity("FiscalOS.Infra.Accounts.Plaid.PlaidInstitutionMetadata", b =>
                 {
                     b.HasBaseType("FiscalOS.Core.Accounts.InstitutionMetadata");
 
@@ -264,6 +340,10 @@ namespace FiscalOS.Infra.Migrations
                         .IsRequired()
                         .HasColumnType("TEXT");
 
+                    b.Property<string>("ItemId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
                     b.Property<string>("PlaidId")
                         .IsRequired()
                         .HasColumnType("TEXT");
@@ -275,10 +355,21 @@ namespace FiscalOS.Infra.Migrations
                     b.HasDiscriminator().HasValue("Plaid");
                 });
 
+            modelBuilder.Entity("FiscalOS.Infra.Transactions.Plaid.PlaidTransactionMetadata", b =>
+                {
+                    b.HasBaseType("FiscalOS.Core.Transactions.TransactionMetadata");
+
+                    b.Property<string>("PlaidId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasDiscriminator().HasValue("Plaid");
+                });
+
             modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
                 {
                     b.HasOne("FiscalOS.Core.Accounts.Institution", "Institution")
-                        .WithMany()
+                        .WithMany("Accounts")
                         .HasForeignKey("InstitutionId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
@@ -312,11 +403,13 @@ namespace FiscalOS.Infra.Migrations
 
             modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
                 {
-                    b.HasOne("FiscalOS.Core.Identity.User", null)
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
                         .WithMany("Institutions")
                         .HasForeignKey("UserId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
+
+                    b.Navigation("User");
                 });
 
             modelBuilder.Entity("FiscalOS.Core.Accounts.InstitutionMetadata", b =>
@@ -339,15 +432,47 @@ namespace FiscalOS.Infra.Migrations
                     b.Navigation("User");
                 });
 
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Accounts.Account", "Account")
+                        .WithMany("Transactions")
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("FiscalOS.Core.Identity.User", "User")
+                        .WithMany("Transactions")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Account");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.TransactionMetadata", b =>
+                {
+                    b.HasOne("FiscalOS.Core.Transactions.Transaction", null)
+                        .WithOne("Metadata")
+                        .HasForeignKey("FiscalOS.Core.Transactions.TransactionMetadata", "TransactionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
             modelBuilder.Entity("FiscalOS.Core.Accounts.Account", b =>
                 {
                     b.Navigation("Balances");
 
                     b.Navigation("Metadata");
+
+                    b.Navigation("Transactions");
                 });
 
             modelBuilder.Entity("FiscalOS.Core.Accounts.Institution", b =>
                 {
+                    b.Navigation("Accounts");
+
                     b.Navigation("Metadata");
                 });
 
@@ -358,6 +483,13 @@ namespace FiscalOS.Infra.Migrations
                     b.Navigation("Institutions");
 
                     b.Navigation("RefreshTokens");
+
+                    b.Navigation("Transactions");
+                });
+
+            modelBuilder.Entity("FiscalOS.Core.Transactions.Transaction", b =>
+                {
+                    b.Navigation("Metadata");
                 });
 #pragma warning restore 612, 618
         }

src/FiscalOS.Infra/Queuing/AsyncQueueHostedService.cs

@@ -0,0 +1,55 @@
+namespace FiscalOS.Infra.Queuing;
+
+internal class AsyncQueueHostedService<T> : BackgroundService where T : notnull
+{
+  private readonly IAsyncQueue<T> _queue;
+  private readonly IServiceProvider _serviceProvider;
+  private readonly ILogger<AsyncQueueHostedService<T>> _logger;
+
+  private AsyncQueueHostedService(
+    IAsyncQueue<T> queue,
+    IServiceProvider serviceProvider,
+    ILogger<AsyncQueueHostedService<T>> logger
+  )
+  {
+    _queue = queue;
+    _serviceProvider = serviceProvider;
+    _logger = logger;
+  }
+
+  public static AsyncQueueHostedService<T> From(IServiceProvider serviceProvider)
+  {
+    var queue = serviceProvider.GetRequiredService<IAsyncQueue<T>>();
+    var logger = serviceProvider.GetRequiredService<ILogger<AsyncQueueHostedService<T>>>();
+    return new(queue, serviceProvider, logger);
+  }
+
+  protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+  {
+    _logger.LogInformation("Queue hosted service for {ItemType} starting", typeof(T).Name);
+
+    try
+    {
+      while (!stoppingToken.IsCancellationRequested)
+      {
+        var item = await _queue.DequeueAsync(stoppingToken).ConfigureAwait(false);
+
+        using var scope = _serviceProvider.CreateScope();
+        var processor = scope.ServiceProvider.GetRequiredService<IAsyncQueueProcessor<T>>();
+
+        try
+        {
+          await processor.ProcessAsync(item, stoppingToken).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+          _logger.LogError(ex, "Error processing queue item of type {ItemType}", typeof(T).Name);
+        }
+      }
+    }
+    catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
+    {
+      _logger.LogInformation("Queue hosted service for {ItemType} stopped", typeof(T).Name);
+    }
+  }
+}

src/FiscalOS.Infra/Queuing/ChannelAsyncQueue.cs

@@ -0,0 +1,31 @@
+namespace FiscalOS.Infra.Queuing;
+
+internal class ChannelAsyncQueue<T> : IAsyncQueue<T>
+{
+  private readonly Channel<T> _channel = Channel.CreateUnbounded<T>();
+
+  private ChannelAsyncQueue()
+  {
+  }
+
+  public static ChannelAsyncQueue<T> From(IServiceProvider serviceProvider)
+  {
+    return new();
+  }
+
+  public async Task EnqueueAsync(T item, CancellationToken cancellationToken = default)
+  {
+    await _channel.Writer.WriteAsync(item, cancellationToken).ConfigureAwait(false);
+  }
+
+  public async Task<T> DequeueAsync(CancellationToken cancellationToken = default)
+  {
+    return await _channel.Reader.ReadAsync(cancellationToken).ConfigureAwait(false);
+  }
+
+  public async ValueTask DisposeAsync()
+  {
+    _channel.Writer.Complete();
+    await _channel.Reader.Completion.ConfigureAwait(false);
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidAddedTransactionHandler.cs

@@ -0,0 +1,115 @@
+using Account = FiscalOS.Core.Accounts.Account;
+using Transaction = FiscalOS.Core.Transactions.Transaction;
+
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+internal interface IPlaidAddedTransactionHandler
+{
+  Task<int> HandleAsync(
+    Account account,
+    IEnumerable<Going.Plaid.Entity.Transaction> added,
+    CancellationToken ct
+  );
+}
+
+internal sealed class PlaidAddedTransactionHandler : IPlaidAddedTransactionHandler
+{
+  private readonly ILogger<PlaidAddedTransactionHandler> _logger;
+  private readonly AppDbContext _appDbContext;
+
+  private PlaidAddedTransactionHandler(
+    ILogger<PlaidAddedTransactionHandler> logger,
+    AppDbContext appDbContext
+  )
+  {
+    _logger = logger;
+    _appDbContext = appDbContext;
+  }
+
+  public static PlaidAddedTransactionHandler From(
+    ILogger<PlaidAddedTransactionHandler> logger,
+    AppDbContext appDbContext
+  )
+  {
+    return new(logger, appDbContext);
+  }
+
+  public static PlaidAddedTransactionHandler From(IServiceProvider serviceProvider)
+  {
+    return new(
+      serviceProvider.GetRequiredService<ILogger<PlaidAddedTransactionHandler>>(),
+      serviceProvider.GetRequiredService<AppDbContext>()
+    );
+  }
+
+  public async Task<int> HandleAsync(Account account, IEnumerable<Going.Plaid.Entity.Transaction> added, CancellationToken ct)
+  {
+    var existingTransactionIds = added.Select(t => t.TransactionId);
+    var existingTransactions = await _appDbContext.Transactions
+      .Include(t => t.Metadata)
+      .Where(t => t.Metadata is PlaidTransactionMetadata && existingTransactionIds.Contains(((PlaidTransactionMetadata)t.Metadata).PlaidId))
+      .ToListAsync(ct)
+      .ConfigureAwait(false);
+
+    var addedCount = 0;
+
+    foreach (var addedTransaction in added)
+    {
+      try
+      {
+        if (addedTransaction.Pending.GetValueOrDefault())
+        {
+          _logger.LogInformation(
+            "Skipping pending transaction {TransactionId} for account {AccountId} as it has not been posted yet",
+            addedTransaction.TransactionId,
+            account.Id
+          );
+          addedCount++;
+          continue;
+        }
+
+        var existingTransaction = existingTransactions.FirstOrDefault(
+          t => t.Metadata is PlaidTransactionMetadata metadata && metadata.PlaidId == addedTransaction.TransactionId
+        );
+
+        if (existingTransaction is not null)
+        {
+          _logger.LogInformation(
+            "Skipping added transaction {PlaidTransactionId} for account {AccountId} as it has already been added as transaction {TransactionId}",
+            addedTransaction.TransactionId,
+            account.Id,
+            existingTransaction.Id
+          );
+          addedCount++;
+          continue;
+        }
+
+        var transactionMetadata = PlaidTransactionMetadata.From(addedTransaction.TransactionId);
+        var transaction = Transaction.From(
+          account.UserId,
+          account.Id,
+          addedTransaction.Merchant,
+          addedTransaction.Description,
+          addedTransaction.CanonicalAmount,
+          addedTransaction.PostedDate,
+          transactionMetadata
+        );
+        account.AddTransaction(transaction);
+        addedCount++;
+      }
+      catch (Exception ex)
+      {
+        _logger.LogError(
+          ex,
+          "Failed to added transaction {PlaidTransactionId} to account {AccountId}",
+          account.Id,
+          addedTransaction.TransactionId
+        );
+      }
+    }
+
+    _logger.LogInformation("Added {AddedCount} transactions to account {AccountId}", addedCount, account.Id);
+
+    return addedCount;
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidExtensions.cs

@@ -0,0 +1,25 @@
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+public static class PlaidExtensions
+{
+#pragma warning disable CA1034
+  extension(Going.Plaid.Entity.Transaction transaction)
+  {
+    public string Merchant => transaction.MerchantName ?? "Unknown merchant";
+    public string Description => transaction.OriginalDescription ?? "";
+    public decimal? CanonicalAmount => transaction.Amount is decimal amount ? -amount : null;
+    public DateTimeOffset PostedDate => transaction.Datetime ?? (
+        transaction.Date.HasValue
+          ? new DateTimeOffset(
+              transaction.Date.Value.Year,
+              transaction.Date.Value.Month,
+              transaction.Date.Value.Day,
+              0,
+              0,
+              0,
+              TimeSpan.Zero
+            )
+          : throw new InvalidOperationException($"Transaction {transaction.TransactionId} does not have a valid date or datetime")
+      );
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidModifiedTransactionHandler.cs

@@ -0,0 +1,111 @@
+using Account = FiscalOS.Core.Accounts.Account;
+using Transaction = FiscalOS.Core.Transactions.Transaction;
+
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+internal interface IPlaidModifiedTransactionHandler
+{
+  Task<int> HandleAsync(
+    Account account,
+    IEnumerable<Going.Plaid.Entity.Transaction> modified,
+    CancellationToken ct
+  );
+}
+
+internal sealed class PlaidModifiedTransactionHandler : IPlaidModifiedTransactionHandler
+{
+  private readonly ILogger<PlaidModifiedTransactionHandler> _logger;
+  private readonly AppDbContext _appDbContext;
+
+  private PlaidModifiedTransactionHandler(
+    ILogger<PlaidModifiedTransactionHandler> logger,
+    AppDbContext appDbContext
+  )
+  {
+    _logger = logger;
+    _appDbContext = appDbContext;
+  }
+
+  public static PlaidModifiedTransactionHandler From(
+    ILogger<PlaidModifiedTransactionHandler> logger,
+    AppDbContext appDbContext
+  )
+  {
+    return new(logger, appDbContext);
+  }
+
+  public static PlaidModifiedTransactionHandler From(IServiceProvider serviceProvider)
+  {
+    return new(
+      serviceProvider.GetRequiredService<ILogger<PlaidModifiedTransactionHandler>>(),
+      serviceProvider.GetRequiredService<AppDbContext>()
+    );
+  }
+
+  public async Task<int> HandleAsync(Account account, IEnumerable<Going.Plaid.Entity.Transaction> modified, CancellationToken ct)
+  {
+    var modifiedTransactionIds = modified.Select(t => t.TransactionId);
+    var existingModifiedTransactions = await _appDbContext.Transactions
+      .Include(t => t.Metadata)
+      .Where(t => t.Metadata is PlaidTransactionMetadata && modifiedTransactionIds.Contains(((PlaidTransactionMetadata)t.Metadata).PlaidId))
+      .ToListAsync(ct)
+      .ConfigureAwait(false);
+
+    var modifiedCount = 0;
+
+    foreach (var existing in existingModifiedTransactions)
+    {
+      try
+      {
+        if (existing.Metadata is not PlaidTransactionMetadata plaidMetadata)
+        {
+          _logger.LogWarning(
+            "Existing transaction {TransactionId} has non-Plaid metadata. Skipping update for this transaction.",
+            existing.Id
+          );
+          modifiedCount++;
+          continue;
+        }
+
+        var plaidModifiedTransaction = modified.FirstOrDefault(t => t.TransactionId == plaidMetadata.PlaidId);
+
+        if (plaidModifiedTransaction is null)
+        {
+          _logger.LogWarning(
+            "No corresponding modified transaction found in Plaid response for existing transaction {TransactionId}. Skipping update for this transaction.",
+            existing.Id
+          );
+          modifiedCount++;
+          continue;
+        }
+
+        var newTransactionData = Transaction.From(
+          existing.Id,
+          existing.UserId,
+          existing.AccountId,
+          plaidModifiedTransaction.Merchant,
+          plaidModifiedTransaction.Description,
+          plaidModifiedTransaction.CanonicalAmount,
+          plaidModifiedTransaction.PostedDate,
+          plaidMetadata
+        );
+
+        _appDbContext.Entry(existing).CurrentValues.SetValues(newTransactionData);
+        modifiedCount++;
+      }
+      catch (Exception ex)
+      {
+        _logger.LogError(
+          ex,
+          "Failed to update transaction {TransactionId} for account {AccountId}",
+          account.Id,
+          existing.Id
+        );
+      }
+    }
+
+    _logger.LogInformation("Modified {ModifiedCount} transactions for account {AccountId}", modifiedCount, account.Id);
+
+    return modifiedCount;
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidRemovedTransactionHandler.cs

@@ -0,0 +1,64 @@
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+internal interface IPlaidRemovedTransactionHandler
+{
+  Task<int> HandleAsync(IEnumerable<RemovedTransaction> removed, CancellationToken cancellationToken);
+}
+
+internal sealed class PlaidRemovedTransactionHandler : IPlaidRemovedTransactionHandler
+{
+  private readonly AppDbContext _appDbContext;
+  private readonly ILogger<PlaidRemovedTransactionHandler> _logger;
+
+  private PlaidRemovedTransactionHandler(
+    AppDbContext appDbContext,
+    ILogger<PlaidRemovedTransactionHandler> logger
+  )
+  {
+    _appDbContext = appDbContext;
+    _logger = logger;
+  }
+
+  public static PlaidRemovedTransactionHandler From(
+    AppDbContext appDbContext,
+    ILogger<PlaidRemovedTransactionHandler> logger
+  )
+  {
+    return new(appDbContext, logger);
+  }
+
+  public static PlaidRemovedTransactionHandler From(IServiceProvider serviceProvider)
+  {
+    return new(
+      serviceProvider.GetRequiredService<AppDbContext>(),
+      serviceProvider.GetRequiredService<ILogger<PlaidRemovedTransactionHandler>>()
+    );
+  }
+
+  public async Task<int> HandleAsync(IEnumerable<RemovedTransaction> removed, CancellationToken cancellationToken)
+  {
+    var removedCount = 0;
+    var removedIdsList = removed.Select(t => t.TransactionId);
+
+    try
+    {
+      removedCount = await _appDbContext.Transactions
+        .Include(t => t.Metadata)
+        .Where(t => t.Metadata is PlaidTransactionMetadata && removedIdsList.Contains(((PlaidTransactionMetadata)t.Metadata).PlaidId))
+        .ExecuteDeleteAsync(cancellationToken)
+        .ConfigureAwait(false);
+    }
+    catch (Exception ex)
+    {
+      _logger.LogError(
+        ex,
+        "Failed to removed transactions {TransactionIds}",
+        removedIdsList
+      );
+    }
+
+    _logger.LogInformation("Removed {RemovedCount} transactions", removedCount);
+
+    return removedCount;
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidTransactionMetadata.cs

@@ -0,0 +1,21 @@
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+public sealed class PlaidTransactionMetadata : TransactionMetadata
+{
+  public const string TypeValue = Providers.Plaid;
+  public string PlaidId { get; init; } = string.Empty;
+
+  private PlaidTransactionMetadata() : base(TypeValue)
+  {
+  }
+
+  public static PlaidTransactionMetadata From(string? plaidId)
+  {
+    ArgumentNullException.ThrowIfNull(plaidId, nameof(plaidId));
+
+    return new()
+    {
+      PlaidId = plaidId,
+    };
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidTransactionProcessor.cs

@@ -0,0 +1,91 @@
+using Account = FiscalOS.Core.Accounts.Account;
+
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+internal interface IPlaidTransactionProcessor
+{
+  Task<bool> ProcessAsync(
+    Account account,
+    TransactionsSyncResponse syncResponse,
+    CancellationToken cancellationToken
+  );
+}
+
+internal sealed class PlaidTransactionProcessor : IPlaidTransactionProcessor
+{
+  private readonly IPlaidAddedTransactionHandler _addedHandler;
+  private readonly IPlaidModifiedTransactionHandler _modifiedHandler;
+  private readonly IPlaidRemovedTransactionHandler _removedHandler;
+  private readonly ILogger<PlaidTransactionProcessor> _logger;
+
+  private PlaidTransactionProcessor(
+    IPlaidAddedTransactionHandler addedHandler,
+    IPlaidModifiedTransactionHandler modifiedHandler,
+    IPlaidRemovedTransactionHandler removedHandler,
+    ILogger<PlaidTransactionProcessor> logger
+  )
+  {
+    _addedHandler = addedHandler;
+    _modifiedHandler = modifiedHandler;
+    _removedHandler = removedHandler;
+    _logger = logger;
+  }
+
+  internal static PlaidTransactionProcessor From(
+    IPlaidAddedTransactionHandler addedHandler,
+    IPlaidModifiedTransactionHandler modifiedHandler,
+    IPlaidRemovedTransactionHandler removedHandler,
+    ILogger<PlaidTransactionProcessor> logger
+  )
+  {
+    return new(addedHandler, modifiedHandler, removedHandler, logger);
+  }
+
+  internal static PlaidTransactionProcessor From(IServiceProvider provider)
+  {
+    return new(
+      provider.GetRequiredService<IPlaidAddedTransactionHandler>(),
+      provider.GetRequiredService<IPlaidModifiedTransactionHandler>(),
+      provider.GetRequiredService<IPlaidRemovedTransactionHandler>(),
+      provider.GetRequiredService<ILogger<PlaidTransactionProcessor>>()
+    );
+  }
+
+  public async Task<bool> ProcessAsync(
+    Account account,
+    TransactionsSyncResponse syncResponse,
+    CancellationToken cancellationToken
+  )
+  {
+    var numAdded = await _addedHandler.HandleAsync(
+      account,
+      syncResponse.Added,
+      cancellationToken
+    ).ConfigureAwait(false);
+
+    var numModified = await _modifiedHandler.HandleAsync(
+      account,
+      syncResponse.Modified,
+      cancellationToken
+    ).ConfigureAwait(false);
+
+    var numRemoved = await _removedHandler.HandleAsync(
+      syncResponse.Removed,
+      cancellationToken
+    ).ConfigureAwait(false);
+
+    _logger.LogInformation(
+      "Processed Plaid transactions sync for account {AccountId}: {NumAdded} of {TotalAdded} added, {NumModified} of {TotalModified} modified, {NumRemoved} of {TotalRemoved} removed",
+      account.Id,
+      numAdded,
+      syncResponse.Added.Count,
+      numModified,
+      syncResponse.Modified.Count,
+      numRemoved,
+      syncResponse.Removed.Count
+    );
+
+    return numAdded == syncResponse.Added.Count &&
+      numModified == syncResponse.Modified.Count;
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidTransactionService.cs

@@ -0,0 +1,58 @@
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+internal interface IPlaidTransactionService
+{
+  IAsyncEnumerable<TransactionsSyncResponse> SyncTransactionsForAccountAsync(
+    string accessToken,
+    string accountId,
+    string? initialCursor = null
+  );
+}
+
+internal sealed class PlaidTransactionService : IPlaidTransactionService
+{
+  private readonly PlaidClient _client;
+
+  private PlaidTransactionService(PlaidClient client)
+  {
+    _client = client;
+  }
+
+  public static PlaidTransactionService From(IServiceProvider sp)
+  {
+    var client = sp.GetRequiredService<PlaidClient>();
+    return new(client);
+  }
+
+  public async IAsyncEnumerable<TransactionsSyncResponse> SyncTransactionsForAccountAsync(
+    string accessToken,
+    string accountId,
+    string? initialCursor = null
+  )
+  {
+    TransactionsSyncResponse? response;
+    var cursor = initialCursor;
+
+    do
+    {
+      response = await _client.TransactionsSyncAsync(new()
+      {
+        AccessToken = accessToken,
+        Cursor = cursor,
+        Count = 500,
+        Options = new()
+        {
+          AccountId = accountId,
+        }
+      }).ConfigureAwait(false);
+
+      if (response.Error?.ErrorCode is "TRANSACTIONS_SYNC_MUTATION_DURING_PAGINATION")
+      {
+        continue;
+      }
+
+      cursor = response.NextCursor;
+      yield return response;
+    } while (response is not null && response.HasMore);
+  }
+}

src/FiscalOS.Infra/Transactions/Plaid/PlaidTransactionSyncer.cs

@@ -0,0 +1,113 @@
+using Account = FiscalOS.Core.Accounts.Account;
+
+namespace FiscalOS.Infra.Transactions.Plaid;
+
+internal interface IPlaidTransactionSyncer
+{
+  Task SyncTransactionsForAccountAsync(
+    Account account,
+    string decryptedAccessToken,
+    CancellationToken cancellationToken
+  );
+}
+
+internal sealed class PlaidTransactionSyncer : IPlaidTransactionSyncer
+{
+  private readonly ILogger<PlaidTransactionSyncer> _logger;
+  private readonly IPlaidTransactionService _plaidTransactionService;
+  private readonly IPlaidTransactionProcessor _transactionProcessor;
+
+  private PlaidTransactionSyncer(
+    ILogger<PlaidTransactionSyncer> logger,
+    IPlaidTransactionService plaidTransactionService,
+    IPlaidTransactionProcessor plaidTransactionProcessor
+  )
+  {
+    _logger = logger;
+    _plaidTransactionService = plaidTransactionService;
+    _transactionProcessor = plaidTransactionProcessor;
+  }
+
+  public static PlaidTransactionSyncer From(
+    ILogger<PlaidTransactionSyncer> logger,
+    IPlaidTransactionService plaidTransactionService,
+    IPlaidTransactionProcessor plaidTransactionProcessor
+  )
+  {
+    return new(logger, plaidTransactionService, plaidTransactionProcessor);
+  }
+
+  public static PlaidTransactionSyncer From(IServiceProvider serviceProvider)
+  {
+    return new(
+      serviceProvider.GetRequiredService<ILogger<PlaidTransactionSyncer>>(),
+      serviceProvider.GetRequiredService<IPlaidTransactionService>(),
+      serviceProvider.GetRequiredService<IPlaidTransactionProcessor>()
+    );
+  }
+
+  public async Task SyncTransactionsForAccountAsync(Account account, string decryptedAccessToken, CancellationToken cancellationToken)
+  {
+    if (account.Metadata is not PlaidAccountMetadata plaidAccountMetadata)
+    {
+      _logger.LogWarning("Unable to sync transactions for account {AccountId} as it has no Plaid metadata", account.Id);
+      return;
+    }
+
+    var responses = _plaidTransactionService.SyncTransactionsForAccountAsync(
+      decryptedAccessToken,
+      plaidAccountMetadata.PlaidId,
+      plaidAccountMetadata.Cursor
+    ).ConfigureAwait(false);
+
+    await foreach (var response in responses)
+    {
+      if (response.IsSuccessStatusCode is false)
+      {
+        _logger.LogWarning(
+          "Failed to sync transactions for request {RequestId} for account {AccountId}: {ErrorMessage}",
+          response.RequestId,
+          account.Id,
+          response.Error?.ErrorMessage
+        );
+        break;
+      }
+
+      if (response.Accounts.Any() is false)
+      {
+        _logger.LogInformation("No transactions to sync for request {RequestId} for account {AccountId}", response.RequestId, account.Id);
+        break;
+      }
+
+      var plaidAccount = response.Accounts
+        .FirstOrDefault(pa => pa.AccountId == plaidAccountMetadata.PlaidId);
+
+      if (plaidAccount is null)
+      {
+        _logger.LogWarning(
+          "Failed to sync transactions for request {RequestId} for account {AccountId}: No corresponding account received in Plaid response",
+          response.RequestId,
+          account.Id
+        );
+        break;
+      }
+
+      var balance = Balance.From(plaidAccount.Current, plaidAccount.Available, plaidAccount.CurrencyCode);
+      account.AddBalance(balance);
+
+      var isProcessedSuccessfully = await _transactionProcessor.ProcessAsync(account, response, cancellationToken).ConfigureAwait(false);
+
+      if (isProcessedSuccessfully is false)
+      {
+        _logger.LogWarning(
+          "Unable to process transactions for request {RequestId} for account {AccountId} successfully",
+          response.RequestId,
+          account.Id
+        );
+        break;
+      }
+
+      plaidAccountMetadata.SetCursor(response.NextCursor);
+    }
+  }
+}