1
0
mirror of https://github.com/bpatrik/pigallery2.git synced 2024-12-16 11:37:13 +02:00
pigallery2/frontend/app/model/network/network.service.ts
Braun Patrik a5e5f90ba6 improving authentication handling
implementing remember me
2017-07-16 10:59:28 +02:00

95 lines
2.7 KiB
TypeScript

import {Injectable} from "@angular/core";
import {Headers, Http, RequestOptions} from "@angular/http";
import {Message} from "../../../../common/entities/Message";
import {SlimLoadingBarService} from "ng2-slim-loading-bar";
import "rxjs/Rx";
import {ErrorCodes, ErrorDTO} from "../../../../common/entities/Error";
@Injectable()
export class NetworkService {
_baseUrl = "/api";
private globalErrorHandlers: Array<(error: ErrorDTO) => boolean> = [];
constructor(protected _http: Http,
private slimLoadingBarService: SlimLoadingBarService) {
}
private callJson<T>(method: string, url: string, data: any = {}): Promise<T> {
let body = JSON.stringify(data);
let headers = new Headers({'Content-Type': 'application/json'});
let options = new RequestOptions({headers: headers});
this.slimLoadingBarService.visible = true;
this.slimLoadingBarService.start(() => {
this.slimLoadingBarService.visible = false;
});
const process = (data: any): T => {
this.slimLoadingBarService.complete();
let res = <Message<any>> data.json();
if (!!res.error) {
if (res.error.code) {
res.error['title'] = ErrorCodes[res.error.code];
}
throw res.error;
}
return res.result;
};
const err = (err) => {
this.slimLoadingBarService.complete();
return this.handleError(err);
};
if (method == "get" || method == "delete") {
return <any>this._http[method](this._baseUrl + url, options)
.toPromise()
.then(process)
.catch(err);
}
return this._http[method](this._baseUrl + url, body, options)
.toPromise()
.then(process)
.catch(err);
}
public postJson<T>(url: string, data: any = {}): Promise<T> {
return this.callJson("post", url, data);
}
public putJson<T>(url: string, data: any = {}): Promise<T> {
return this.callJson("put", url, data);
}
public getJson<T>(url: string): Promise<T> {
return this.callJson("get", url);
}
public deleteJson<T>(url: string): Promise<T> {
return this.callJson("delete", url);
}
private handleError(error: any) {
if (typeof error.code !== "undefined") {
for (let i = 0; i < this.globalErrorHandlers.length; i++) {
if (this.globalErrorHandlers[i](error) == true) {
return;
}
}
return Promise.reject(error);
}
// TODO: in a real world app do something better
// instead of just logging it to the console
console.error(error);
return Promise.reject(error.message || error || 'Server error');
}
addGlobalErrorHandler(fn: (error: ErrorDTO) => boolean) {
this.globalErrorHandlers.push(fn);
}
}