From 4dc05ac1809ba18968210e1cac21dd03dc973819 Mon Sep 17 00:00:00 2001
From: sdraris <sofiane.draris@ptits-pas.fr>
Date: Mon, 25 Aug 2025 10:49:10 +0200
Subject: [PATCH] interceptors + filters added

---
 src/common/filters/all_exceptions.filters.ts  | 27 +++++++++++++++++++
 .../interceptors/transform.interceptor.ts     | 15 +++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 src/common/filters/all_exceptions.filters.ts
 create mode 100644 src/common/interceptors/transform.interceptor.ts

diff --git a/src/common/filters/all_exceptions.filters.ts b/src/common/filters/all_exceptions.filters.ts
new file mode 100644
index 0000000..4d46609
--- /dev/null
+++ b/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,
+        });
+    }
+}
\ No newline at end of file
diff --git a/src/common/interceptors/transform.interceptor.ts b/src/common/interceptors/transform.interceptor.ts
new file mode 100644
index 0000000..300de4a
--- /dev/null
+++ b/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
+            })),
+        );
+    }
+}
\ No newline at end of file