diff --git a/src/file-upload/rxjs/operator.ts b/src/file-upload/rxjs/operator.ts
new file mode 100644
index 0000000..da13df4
--- /dev/null
+++ b/src/file-upload/rxjs/operator.ts
@@ -0,0 +1,6 @@
+import 'rxjs/add/operator/catch';
+import 'rxjs/add/operator/debounceTime';
+import 'rxjs/add/operator/distinctUntilChanged';
+import 'rxjs/add/operator/map';
+import 'rxjs/add/operator/switchMap';
+import 'rxjs/add/operator/toPromise';