RxJS：禁止在效果和史诗中使用不安全的捕获，并要求嵌套

Question

我有一个效果，主要思想是用API做出一些“魔术”，这是主要问题：首先，我需要发出一个请求，成功后，我需要发出第二个请求。一切正常，直到我将代码更改为此（看起来更具可读性）：

@Effect()
    myEffect$ = this.actions$.pipe(
        ofType(actionTypes.SomeDataAction),
        withLatestFrom(this.store.select(selectTheAwesome)),
        concatMap(([action, awesomeData]) =>
            forkJoin([
                of(awesomeData),
                this.myService.makeFirstMagic(
                    action.payload.someDataId
                )
            ])
        ),
        concatMap(data => {
            const [awesomeData, magicFirst] = data;

            return this.myService.makeSecondMagic(awesomeData.awesomeDataId, magicFirst.newId).pipe(
                mergeMap(response => {
                    return [new SomeDataActionSuccess(), new SomeAnotherDataAction([response])];
                })
            );
        }),
        catchError((error) => of(new SomeDataActionError({ error })))
    );

但结果ts-lint失败，并显示RxJS: Unsafe catch usage in effects and epics is forbidden。我做错了什么？为什么以前用这样的代码工作（通过掉毛）？

@Effect()
    myEffect$ = this.actions$.pipe(
        ofType(actionTypes.SomeDataAction),
        withLatestFrom(this.store.select(selectTheAwesome)),
        mergeMap(([action, awesomeData]) => {
            return this.myService.makeFirstMagic(action.payload.someDataId).pipe(
                mergeMap(magicFirst => {
                    return this.myService.makeSecondMagic(awesomeData.awesomeDataId, magicFirst.newId).pipe(
                        mergeMap(response => {
                            return [new SomeDataActionSuccess(), new SomeAnotherDataAction([response])];
                        })
                    );
                })
            );
        }),
        catchError(error => of(new SomeDataActionError({ error })))
    );

Answer 1

例如，每种服务方法都必须使用catchError

this.myService.makeSecondMagic(awesomeData.awesomeDataId, magicFirst.newId).pipe(
                mergeMap(response => {
                    return [new SomeDataActionSuccess(), new SomeAnotherDataAction([response])];
                }),
                catchError(....)
            );