59 lines
1.8 KiB
TypeScript
59 lines
1.8 KiB
TypeScript
import { Injectable, Inject } from '@angular/core';
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import { HttpClient, HttpHeaders, HttpErrorResponse } from '@angular/common/http';
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import { Observable } from 'rxjs/Observable';
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import { Location } from '@angular/common';
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import 'rxjs/add/operator/do';
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import 'rxjs/add/operator/map';
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import 'rxjs/add/operator/catch';
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import 'rxjs/add/operator/timeout';
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import 'rxjs/add/observable/throw';
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import { ErrorResponse } from './error-response';
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@Injectable()
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export class RESTService {
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private readonly httpHeaders: HttpHeaders;
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constructor(
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@Inject('REST_BASE_URL') private _baseURL: string,
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@Inject(HttpClient) private _httpClient: HttpClient,
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) {
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this.httpHeaders = new HttpHeaders()
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.set('Content-Type', 'application/json');
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}
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public get httpClient(): HttpClient {
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return this._httpClient;
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}
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public get<T>(entry: string, params?: {[param: string]: string | string[]}): Observable<T> {
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const headers: HttpHeaders = this.httpHeaders;
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return this._httpClient
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.get(Location.joinWithSlash(this._baseURL, entry), {
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headers: headers,
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params: params,
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responseType: 'json',
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})
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.map((response: string) => <T>JSON.parse(response))
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.catch((error: HttpErrorResponse) => Observable.throw(ErrorResponse.restError(error)));
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}
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public post<T>(entry: string, body: any | null, params?: {[param: string]: string | string[]}): Observable<T> {
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const headers: HttpHeaders = this.httpHeaders;
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return this._httpClient
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.post(Location.joinWithSlash(this._baseURL, entry), body, {
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headers: headers,
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params: params,
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responseType: 'json',
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})
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.map((response: string) => <T>JSON.parse(response))
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.catch((error: HttpErrorResponse) => Observable.throw(ErrorResponse.restError(error)));
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}
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}
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