Question

我用httpRequest编写了ngrx效果，该效果使用action.payload的动作。

从请求中我获取了在地图运算符中使用的数据（如果发生错误，我将在catchError中对其进行处理）

从后端我仅获得布尔值，如何将Action.payload从Action传播到map或catchError运算符？

示例：

effect= this.actions$
    .ofType(Actions.IS_OK)
    .pipe(
         mergeMap(action => this.service.isOk(action.payload),
         map((isOk: boolean)  => new SuccessAction(isOk, action.payload), //here I need somehow get to action.payload value
         catchError(error => of(new ErrorAction(error, action.payload))) //here I need somehow get to action.payload value
     );

我无法存储要存储的有效负载，因为我触发了更多操作：Actions.IS_OK

感谢帮助

Answer 1

您可以尝试：

effect = this.actions$
    .ofType(Actions.IS_OK)
    .pipe(
         mergeMap(action => this.service.isOk(action.payload).pipe(
             map((isOk: boolean) => { payload: action.payload, isOk: isOk} )
         ),
         // need to create proper interface forPayload + isOk 
         map((payloadPlusIsOk: any)  => new SuccessAction(payloadPlusIsOk.isOk, payloadPlusIsOk.payload),
         catchError(error => of(new ErrorAction(error, action.payload))) //here I need somehow get to action.payload value
     );

如何将action.payload从ngrx-effect中的Action传播到catchError或map运算符？

1 个答案: