ngrx @Effect

Question

如果响应成功，我将尝试分派一个动作，如果响应失败，我将分派另一个动作。当我构造如下所示的效果时，我收到无效的操作错误。是否可以在效果内添加条件语句？

@Effect()
public makeFirstRequest = this.actions.pipe(
    ofType<InitialAction>(ActionTypes.InitialAction),
    switchMap(action => this.myService.firstRequest(action.param)),
    map(response => { 
      if (success) {
        new FollowUpAction(response))
      }else {
        new ErrorAction(response))
      }
);

Answer 1

您必须返回操作：

body