fix: added dependencies for development. feat: added axios as dependency. feat: added some initial modeals. feat: setup unit testing

src/models/ApiResponse.ts

@@ -0,0 +1,13 @@
+export class ApiResponse<T> {
+  readonly statusCode: number;
+  readonly isSuccessful: boolean;
+  readonly message: string;
+  readonly data: T;
+
+  constructor(statusCode: number, isSuccessful: boolean, message: string, data: T) {
+    this.statusCode = statusCode;
+    this.isSuccessful = statusCode < 400;
+    this.message = message;
+    this.data = data;
+  }
+}

src/models/App.ts

@@ -0,0 +1,5 @@
+class App {
+  href: string;
+  id: number;
+  name: string;
+}

src/models/ArgumentValidator.ts

@@ -0,0 +1,17 @@
+export class ArgumentValidator {
+    public static isNullOrWhiteSpace(value: string | null | undefined): boolean {
+      return value === null || value === undefined || (/^\s*$/).test(value);
+    }
+
+    public static isValidUrl(value: string | null | undefined): boolean {
+      let url: URL;
+
+      try {
+        url = new URL(value);
+      } catch (error) {
+        return false;
+      }
+
+      return url.protocol === 'http:' || url.protocol === 'https:';
+    }
+}

src/models/PagingRequest.ts

@@ -0,0 +1,9 @@
+export class PagingRequest {
+  pageNumber: number;
+  pageSize: number;
+
+  constructor(pageNumber: number, pageSize: number) {
+    this.pageNumber = pageNumber;
+    this.pageSize = pageSize;
+  }
+}