'Observable<Observable<HttpEvent<any>>>' 不可分配给类型 'Observable<any[]>'

Question

我想调用一个 http 请求，它必须 return 一个 observable 然后由一种以特定时间间隔调用的方法，用于进一步...

请考虑这个

订阅者方式

 startReceivingMeasurmentLiveDataV2(httpOptions: any,deviceId:number,seriesType:string,aggregation:string,from:string,to:string,pageSize:number,revert:boolean) {
debugger;
if (this.intervalSubscription) {
  this.intervalSubscription.unsubscribe();
}

this.intervalSubscription = interval(200)
  .pipe(
    takeWhile(() => this.alive),
//    switchMap(() => this.deviceService.getMeasurmentLiveUpdateCardDataV2(httpOptions,deviceId,seriesType,aggregation,from,to,pageSize,revert)),
    switchMap(() => this.deviceService.GetMeasurmentsV2(httpOptions,deviceId,seriesType,aggregation,from,to,pageSize,revert)),
  )
  .subscribe((liveUpdateChartData: any[]) => {

  debugger;
    this.liveUpdateChartData = [...liveUpdateChartData];

//console.log("测量数据"); // console.log(this.liveUpdateChartData); }); }

Http 可观察

GetMeasurmentsV2(httpOptions: any, deviceID: number, seriesType: string, aggregationType: string, dateFrom: string, dateTo: string, pageSize: number, revert: boolean):  Observable<any[]>  {
let url =  `${this.config.apiUrl}/measurement/measurements/series?aggregationType='${aggregationType}'&dateFrom='${dateFrom}'&dateTo='${dateTo}'&pageSize='${pageSize}'&revert='${revert}'&series='${seriesType}'&source='${deviceID}'`
url = url.replace(/'/g,'');  


return this.httpClient.get<any>(

     url

      ,httpOptions)
      
      .pipe(map(measurments => {
        return observableOf(measurments);

     
      }));

}

问题来了

请帮我解决这个问题？

Answer 1

您现在return嵌套的可观察对象

只是 return 初始可观察对象 return this.httpClient.get<any>(url, httpOptions)，没有将响应包装在另一个可观察对象中

'Observable<Observable<HttpEvent<any>>>' 不可分配给类型 'Observable<any[]>'

'Observable<Observable<HttpEvent<any>>>' is not assignable to type 'Observable<any[]>'

pipe

httpclient

observable

typescript

angular