Question

使用redux和Angular，我有以下效果：

  @Effect()
  public authenticate: Observable<Action> = this.actions
    .ofType(AUTHENTICATE)
    .pipe(
      map((action: AuthenticateAction) => action.payload),
      switchMap(payload => {
        return this.userService.authenticateUser(payload.email, payload.password).pipe(
          map(auth => new AuthenticationSuccessAction({ auth: auth })),
          catchError(error => of(new HttpErrorAction({ error: error })))
        );
      })
    );

服务：

  public authenticateUser(email: string, password: string): Observable<IAuthentication> {
    const formData: FormData = new FormData();
    formData.append('email', email);
    formData.append('password', password);
    return this.httpClient.post('/api/auths/useraccounts', formData) as Observable<IAuthentication>;
  }

当POST失败时，永远不会调度HttpErrorAction。

Answer 1

原来我忘了我有一个HttpInterceptor，我抓住了这样的http错误：

return next.handle(authReq).pipe(catchError(
      (error) => {
        return of(error);
      }

如果我想把错误搞砸到效果，我会做类似的事情：

return Observable.throw(error);

当从角度服务传送时，rxjs catchError无法正常工作

1 个答案: