booking flow,summtion, approval, contract, mock payemnt and integration to back office, and also add permissions

packages/api-common/src/interceptors/response-transform.interceptor.ts

@@ -3,7 +3,9 @@ import {
   ExecutionContext,
   Injectable,
   NestInterceptor,
+  StreamableFile,
 } from "@nestjs/common";
+import { Readable } from "stream";
 import { Observable } from "rxjs";
 import { map } from "rxjs/operators";
 
@@ -16,18 +18,28 @@ export interface StandardResponse<T> {
 @Injectable()
 export class ResponseTransformInterceptor<T> implements NestInterceptor<
   T,
-  StandardResponse<T>
+  StandardResponse<T> | T
 > {
   intercept(
     _context: ExecutionContext,
     next: CallHandler<T>,
-  ): Observable<StandardResponse<T>> {
+  ): Observable<StandardResponse<T> | T> {
     return next.handle().pipe(
-      map((data) => ({
-        success: true,
-        data,
-        timestamp: new Date().toISOString(),
-      })),
+      map((data) => {
+        if (
+          data instanceof StreamableFile ||
+          data instanceof Buffer ||
+          data instanceof Readable
+        ) {
+          return data;
+        }
+
+        return {
+          success: true,
+          data,
+          timestamp: new Date().toISOString(),
+        };
+      }),
     );
   }
 }