angular-httpclient

问题 I use Observable.forkJoin() to handle the response after both http calls finishes, but if either one of them returns an error, how can I catch that error? Observable.forkJoin( this.http.post<any[]>(URL, jsonBody1, postJson) .map((res) => res), this.http.post<any[]>(URL, jsonBody2, postJson) .map((res) => res) ) .subscribe(res => this.handleResponse(res)) 回答1: You may catch the error in each of your observables that are being passed to forkJoin : // Imports that support chaining of operators

问题 I Setup Angular all the time with new Project. Anyone can suggest good boilerplate where no need to develop Basic required features which are required most of the times in a application. JWT Authentication in Angular 6 Bootstrap/Material Design setup in Angular 6 Http Services in Angular 6 File Uploading in Angular 6 Basic CRUD in Angular 6 Please suggest. It will save my lot of time. 回答1: You can follow this boilerplate https://github.com/brnrajoriya/Angular-Ready-To-Use-Boilerplate Just

问题 I Setup Angular all the time with new Project. Anyone can suggest good boilerplate where no need to develop Basic required features which are required most of the times in a application. JWT Authentication in Angular 6 Bootstrap/Material Design setup in Angular 6 Http Services in Angular 6 File Uploading in Angular 6 Basic CRUD in Angular 6 Please suggest. It will save my lot of time. 回答1: You can follow this boilerplate https://github.com/brnrajoriya/Angular-Ready-To-Use-Boilerplate Just

问题 After updating my project to use the HttpClient module instead of the Http module, the following no longer works. The problem is Property json does not exist on type object . I do need to get the items property. How can I achieve this? private loadLatestVideosForChannelId( channelId: string ): Promise<any[]> { // load videos from youtube-data-api let videos = this.http.get( 'https://www.googleapis.com/youtube/v3/search' + '?key=' + this.apiKey + '&channelId=' + channelId + '&part=snippet,id'

问题 After updating my project to use the HttpClient module instead of the Http module, the following no longer works. The problem is Property json does not exist on type object . I do need to get the items property. How can I achieve this? private loadLatestVideosForChannelId( channelId: string ): Promise<any[]> { // load videos from youtube-data-api let videos = this.http.get( 'https://www.googleapis.com/youtube/v3/search' + '?key=' + this.apiKey + '&channelId=' + channelId + '&part=snippet,id'

问题 I am trying to inject the HttpClientModule manually which runs outside independent(may be!) from app. Before static injector i was using reflective injector and code was working fine but now that reflective injector has been deprecated and I want to update my code with static injector. //appInjector.ts export class AppInjector { private static _instance: AppInjector = new AppInjector(); private _injector; constructor() { console.log('app-injector'); AppInjector._instance = this; this.

问题 In a project, we used both Http & HttpClient to fetch the header params. Http returns the header params, but HttpClient doesn't. constructor(private http: Http, private httpClient: HttpClient) {} getContent() { const url = ''; return this.http.post(url, data) .map((res: HttpResponse<any>) => { console.log('http content', res); }); return this.httpClient.post(url, data, { observe: 'response' }) .map((res: HttpResponse<any>) => { console.log('httpClient content',res); }); } When checked in

问题 I am starting a new angular project with the CLI and am running into a no provider for HttpClient error. I have added HttpClientModule to my module imports which seems to be the usual culprit in this scenario. Not finding a lot online other than that so I am not sure what the issue may be. my app.module.ts @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, HttpClientModule ], providers: [], bootstrap: [AppComponent] }) export class AppModule { } and my service @Injectable()

问题 I need download an excel from my backend, its returned a file. When I do the request I get the error: TypeError: You provided 'undefined' where a stream was expected. You can provide an Observable, Promise, Array, or Iterable. My code is: this.http.get(`${environment.apiUrl}/...`) .subscribe(response => this.downloadFile(response, "application/ms-excel")); I tried get and map(...) but didn't work. Details: angular 5.2 references: import { HttpClient } from '@angular/common/http'; import 'rxjs

问题 I'm fetching an object from a json endpoint using the HttpClient. After I fetch it and subscribe to the observable, I found that the constructor doesn't run on the model and the public methods on the object are all undefined. How do I get the constructor to run and the methods are available? export class Customer { constructor() { this.Addresses = new Array<Address>(); } public Addresses: Array<Address>; public addAddress(address: Address) void{ this.Addresses.push(address); } } var url: