mvp of request effect

common/sagas/helpers.ts

@@ -0,0 +1,14 @@
+import { delay as RDelay, SagaIterator } from 'redux-saga';
+import { apply, all, call } from 'redux-saga/effects';
+
+type Func1<T1> = (arg1: T1) => any;
+
+export function* request<T1>(
+  context: any,
+  fn: Func1<T1>,
+  args: [T1],
+  delay: number = 500
+): SagaIterator {
+  const [result] = yield all([apply(context, fn, args), call(RDelay, delay)]);
+  return result;
+}