代码之家 › 专栏 › 技术社区 › firasKoubaa

angular:在httpclient中使用http的requestoptions

angular-httpclient angular-http typescript angular

firasKoubaa · 技术社区 · 8 年前

我要从 HTTP协议 到 httpclient公司 我习惯加一些标题我的http请求如下:

import { RequestOptions, Request, RequestMethod, Headers } from '@angular/http';


this.pass = btoa(cuid + ': ');
this.pass = "Basic " + this.pass;
this.header = new Headers();
this.header.set("Authorization", this.pass);
let options = new RequestOptions({
  headers: this.header
});

return this.http.post(myServiceUrl, {}, options)

现在,当迁移到httpclient时,我已经尝试了:

import {HttpClient, HttpHeaders} from '@angular/common/http';

    const header = new HttpHeaders();
    const pass = 'Basic ' + btoa(cuid + ': ');
    header.set('Authorization', pass);
    const options =  ({
      headers: header
    });
    return this.httpClient.post(myServiceUrl, {}, options);

但正如你所看到的,我发现 请求选项 ,整个处理无法添加相同的头。

建议??

3 回复 | 直到 8 年前

J. Pichardo 8 年前

这个 HttpClient.post 方法具有以下签名:

post(url: string, body: any | null, options: OptionsType)

其中 OptionsType 以下是(相当于 RequestOptions )

{
  headers?: HttpHeaders | { [header: string]: string | string[] };
  observe?: "body";
  params?: HttpParams | { [param: string]: string | string[] };
  reportProgress?: boolean;
  responseType: "arraybuffer";
  withCredentials?: boolean;
};

从那里你可以给你分配标题或参数,比如:

const options = {
  headers: new HttpHeaders().append('key', 'value'),
  params: new HttpParams().append('key', 'value')
}


this.httpClient.post(url, {}, options)

你也可以看看 this question

Mike Tung 8 年前

HTTP客户端等效值应为:

const headers = new HttpParams().set('Authorization', pass);
return this.httpClient.post(myServiceUrl, {}, {headers: headers});

Nicholas Pesa 8 年前

我以前做这件事是为了 getHeaders(token) :

  getHeaders(token) {
    return new HttpHeaders().set('Authorization', `Bearer ${token}`);
  }

然后,在发出请求时,只需将其附加到请求中,如下所示:

this.http.post(url, body, this.getHeaders(token));

还有一个httpinterceptor可以自动处理请求,下面是一篇文章: https://www.intertech.com/Blog/angular-4-tutorial-handling-refresh-token-with-new-httpinterceptor/

我已经用firebase auth完成了这样的标记。以下是token.interceptor.ts文件:

@Injectable()
export class TokenInterceptor implements HttpInterceptor {

  afAuth: any;

  constructor(
    private inj: Injector
  ) { }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    this.afAuth = this.inj.get(AngularFireAuth);

    return this.getToken().pipe(
      switchMap(token => {
        request = request.clone({
          setHeaders: {
            Authorization: `Bearer ${token}`
          }
        });

        return next.handle(request);
      })
    );
  }

  getToken() {
    return Observable.fromPromise(this.afAuth.auth.currentUser.getIdToken());
  }
}

然后您需要将其提供给顶级app.module,如下所示:

{ provide: HTTP_INTERCEPTORS, useClass: TokenInterceptor, multi: true }

这里要做的是为每个自动处理的http请求设置授权令牌,这样您就不必在发出请求之前等待令牌。请记住,这是非常具体的firebase auth,因为这是给我的jwt令牌。希望这能有所帮助!