client/src/app/+admin/requests/shared/request.service.ts


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import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/catch';
import 'rxjs/add/operator/map';

import { RequestStats } from './request-stats.model';
import { AuthHttp, RestExtractor } from '../../../shared';

@Injectable()
export class RequestService {
  private static BASE_REQUEST_URL = API_URL + '/api/v1/requests/';

  constructor (
    private authHttp: AuthHttp,
    private restExtractor: RestExtractor
  ) {}

  getStats(): Observable<{ [ id: string ]: RequestStats }> {
    return this.authHttp.get(RequestService.BASE_REQUEST_URL + 'stats')
                        .map(this.restExtractor.extractDataGet)
                        .map(this.buildRequestObjects)
                        .catch((res) => this.restExtractor.handleError(res));
  }

  private buildRequestObjects(data: any) {
    const requestSchedulers = {};

    Object.keys(data).forEach(requestSchedulerName => {
      requestSchedulers[requestSchedulerName] = new RequestStats(data[requestSchedulerName]);
    });

    return requestSchedulers;
  }
}