Angular 从Observatory的订阅方法外正确接收JSON数据

有这个函数用于提取用户模块，这个函数在响应中提取用户模块的JSON.

  getUserModuleInstalled(): Observable<any[]> {
    const userId = this.user.id;
    return this._moduleService.getUserModule(userId).pipe(
      switchMap((response: any) => {
        return from(response.user_module || []).pipe(
          concatMap((userModule: any) => {
            const moduleId = userModule.module_id;
            console.log('User module Id response=> '+moduleId);
            return this._moduleService.getSubscriptionModule(moduleId).pipe(
              map(subModule =>  subModule.data.subscription_modules),
              catchError(error => {
                console.error(error);
                return of(null);
              })
            );
          }),
          toArray(),
          catchError(error => {
            console.error(error);
            return of([]);
          })
        );
      })
    );
  }

然后a使用这个函数来获取返回json 在ngOninit中使用这个json和这个subscribe方法

this.getUserModuleInstalled().subscribe((data: any[]) => {
    if (data) {
        const new_plans = JSON.parse(JSON.stringify(data));
        console.log('New plans data:', new_plans);
        new_plans.forEach((plan: ModulesSub) => {
          return this.plansSubject.next(plan);
        });
    } else {
        console.log('No data received');
    }
}, (error: any) => {
    // handle the error
    console.error('Error:', error);
});

this.plansSubject.subscribe((plan: ModulesSub) => {
    this.plans = [plan];
    console.log('Plans data:', this.plans);
});

//I make a console log for check return this object and is correct

基于该响应，我需要如下使用subscribe，因为这是 * ngFor正确调用我的方式，示例响应应该是什么

 this.plans= [
    {
      "id": "1",
      "name": "POS Coffe Shop",
      "price": "5",
      "type": "1",
      "description": "module for sale , managed inventory, ia asistanace",
      "frequency": "month"
    }, {
      "id": "2",
      "name": "POS Coffe Shop",
      "price": "5",
      "type": "1",
      "description": "module for sale , managed inventory, ia asistanace",
      "frequency": "month"
    }
  ]