feat(infra): add delete endpoint for transactions with corresponding integration tests

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/TransactionsExtensions.cs

@@ -1,3 +1,4 @@
+using FiscalOS.API.Transactions.DeleteById;
 using FiscalOS.API.Transactions.FireWebhook;
 using FiscalOS.API.Transactions.Get;
 using FiscalOS.API.Transactions.Webhook;
@@ -14,6 +15,7 @@ internal static class TransactionsExtensions
       .RequireAuthorization();
 
     transactionsGroup.MapGetEndpoint();
+    transactionsGroup.MapDeleteEndpoint();
     transactionsGroup.MapWebhookEndpoint().AllowAnonymous();
 
     if (app.Environment.IsProduction() is false)