interceptors + filters added

src/common/filters/all_exceptions.filters.ts

@@ -0,0 +1,27 @@
+import { ArgumentsHost, Catch, ExceptionFilter, HttpException, HttpStatus } from "@nestjs/common";
+
+@Catch()
+export class AllExceptionsFilter implements ExceptionFilter {
+    catch(exception: unknown, host: ArgumentsHost) {
+        const ctx = host.switchToHttp();
+        const response = ctx.getResponse();
+        const request = ctx.getRequest();
+        const status =
+            exception instanceof HttpException
+                ? exception.getStatus()
+                : HttpStatus.INTERNAL_SERVER_ERROR;
+
+        const message =
+            exception instanceof HttpException
+                ? exception.getResponse()
+                : { message: 'Internal server error' };
+
+        response.status(status).json({
+            success: false,
+            statusCode: status,
+            timestamp: new Date().toISOString(),
+            path: request.url,
+            message,
+        });
+    }
+}

src/common/interceptors/transform.interceptor.ts

@@ -0,0 +1,15 @@
+import { CallHandler, ExecutionContext, Injectable, NestInterceptor } from "@nestjs/common";
+import { map, Observable, timestamp } from "rxjs";
+
+@Injectable()
+export class TransformInterceptor implements NestInterceptor {
+    intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+        return next.handle().pipe(
+            map((data) => ({
+                success: true,
+                timestamp: new Date().toISOString(),
+                data
+            })),
+        );
+    }
+}