角度解析Rxjs映射并订阅多个API

应用程序需要先获取jwt令牌,然后使用令牌,收集门户信息。这段代码是用解析器编写的。

此代码产生错误异常:

什么时候 Observable<any>

@Injectable()
export class PortalLoadingResolverService implements Resolve<any> {
    constructor(
      private authService:AuthService,
      private emiDataService:EmiDataService,
    ) { }

    resolve():Observable<any> {
      return this.authService.getJwtToken()
      .map(res => res.json())
      .subscribe(JwtToken => {
        debugger;
        localStorage.setItem('id_token',JwtToken.token);
        return this.emiDataService.getBasicLoadingDatas();
      });
    }
}