1st commit

src/common/interceptors/response.interceptor.ts

@@ -0,0 +1,42 @@
+import {
+  CallHandler,
+  ExecutionContext,
+  Injectable,
+  NestInterceptor,
+} from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { map, Observable } from 'rxjs';
+
+export interface StandardApiResponse<T> {
+  success: boolean;
+  statusCode: number;
+  path: string;
+  timestamp: string;
+  data: T;
+}
+
+@Injectable()
+export class ResponseInterceptor<T>
+  implements NestInterceptor<T, StandardApiResponse<T>>
+{
+  constructor(private readonly reflector: Reflector) {}
+
+  intercept(
+    context: ExecutionContext,
+    next: CallHandler,
+  ): Observable<StandardApiResponse<T>> {
+    const http = context.switchToHttp();
+    const response = http.getResponse();
+    const request = http.getRequest();
+
+    return next.handle().pipe(
+      map((data) => ({
+        success: true,
+        statusCode: response.statusCode,
+        path: request.url,
+        timestamp: new Date().toISOString(),
+        data,
+      })),
+    );
+  }
+}