[for AI code review test] feat: add common response interceptor

src/app.config.ts

@@ -1,10 +1,13 @@
-import {INestApplication, ValidationPipe} from "@nestjs/common";
+import { INestApplication, ValidationPipe } from '@nestjs/common';
+import { CommonResponseInterceptor } from '@/common/interceptor';
 
 export function nestConfig(app: INestApplication) {
-    app.useGlobalPipes(
-        new ValidationPipe({
-            transform: true,
-            whitelist: true,
-        }),
-    );
-}
+  app.useGlobalPipes(
+    new ValidationPipe({
+      transform: true,
+      whitelist: true,
+    }),
+  );
+
+  app.useGlobalInterceptors(new CommonResponseInterceptor());
+}

src/common/interceptor/index.ts

@@ -0,0 +1 @@
+export * from './response.interceptor';

src/common/interceptor/response.interceptor.ts

@@ -0,0 +1,34 @@
+import {
+  Injectable,
+  NestInterceptor,
+  ExecutionContext,
+  CallHandler,
+  HttpStatus,
+} from '@nestjs/common';
+import { catchError, map, Observable, of } from 'rxjs';
+
+@Injectable()
+export class CommonResponseInterceptor implements NestInterceptor {
+  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+    return next.handle().pipe(
+      map((data) => {
+        const statusCode: HttpStatus = context
+          .switchToHttp()
+          .getResponse().statusCode;
+        return {
+          success: true,
+          statusCode: statusCode,
+          data: data,
+        };
+      }),
+      catchError((err) => {
+        return of({
+          success: false,
+          statusCode: err.statusCode,
+          errorCode: err.errorCode,
+          errorMessage: err.message,
+        });
+      }),
+    );
+  }
+}