client/src/app/shared/rest/rest-extractor.service.ts

   1 import { Injectable } from '@angular/core';
   2 import { Response } from '@angular/http';
   3 import { Observable } from 'rxjs/Observable';
   4
   5 export interface ResultList {
   6   data: any[];
   7   total: number;
   8 }
   9
  10 @Injectable()
  11 export class RestExtractor {
  12
  13   constructor () { ; }
  14
  15   extractDataBool(res: Response) {
  16     return true;
  17   }
  18
  19   extractDataList(res: Response) {
  20     const body = res.json();
  21
  22     const ret: ResultList = {
  23       data: body.data,
  24       total: body.total
  25     };
  26
  27     return ret;
  28   }
  29
  30   extractDataGet(res: Response) {
  31     return res.json();
  32   }
  33
  34   handleError(res: Response) {
  35     let text = 'Server error: ';
  36     text += res.text();
  37     let json = res.json();
  38
  39     const error = {
  40       json,
  41       text
  42     };
  43
  44     return Observable.throw(error);
  45   }
  46 }