html - 类型“对象”上不存在属性“过滤器”。尝试过滤响应时

我试图从一个json文件中获取数据，该文件等于url中播放器的名称。例如：localhost:4200/players/febiven应该只返回关于febiven的信息。IM使用角度6
到目前为止，我有这个代码：
player.service.ts播放器

  get(ingameName){
    return <Observable<Player>> this.http.get(endpoint).map(response =>{
        let data = response.filter(item=>{
          if (item.ingameName == ingameName) {
            return item
          }
        });
        if (data.length == 1){
          return data[0]
        }
        return {}
      })
      .catch(this.handleError)
  }

  private handleError(error:any, caught:any): any{
    console.log(error, caught)
  }

播放器信息组件

 export interface Player {
  ingameName: string;
  name: string;
  intro: string;
  image: string;
  info: string;
  team: string;
  dob: string;
  earnings: string;
  role: string;
  game: string;
  favourite: string;
  IDs: string;

}

export class PlayerInfoComponent implements OnInit {
  players: Player[] = null;
  private routeSub:any;
  private req:any;
  ingameName:string;
  player : player;


  constructor(private route: ActivatedRoute, private plService : PlayerService) { }

  ngOnInit() {
    this.routeSub = this.route.params.subscribe(params => {
      this.ingameName = params['ingameName'];
      this.req = this.plService.get(this.ingameName).subscribe(data=>{
        this.player = data as player
      })
    });

获取错误“property”filter的IM在类型“object”上不存在。我真的不知道如何解决这个问题，我看了很多答案，但似乎没有一个对我有用。如果有人能帮我纠正这个错误那就太好了
谢谢

最佳答案

filter仅存在于数组中。你的反应是个目标。你可以这样做：

get(ingameName){
    return <Observable<Player>> this.http.get(endpoint).map(response =>{
        let data = response.json();
        if (data.ingameName == ingameName){
           return data;
        }
        return {};
    })
    .catch(this.handleError)
}