Angular 角度:与HttpClient使用Http的RequestOptions等效
我正在从Http迁移到HttpClient 我习惯于在http请求中添加一些头,如下所示:Angular 角度:与HttpClient使用Http的RequestOptions等效,angular,typescript,angular-http,angular-httpclient,Angular,Typescript,Angular Http,Angular Httpclient,我正在从Http迁移到HttpClient 我习惯于在http请求中添加一些头,如下所示: import { RequestOptions, Request, RequestMethod, Headers } from '@angular/http'; this.pass = btoa(cuid + ': '); this.pass = "Basic " + this.pass; this.header = new Headers(); this.header.set("Authorizat
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,在迁移到httpClient时,我尝试了以下方法:
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);
但是正如您所看到的,ivent找到了与RequestOptions等效的方法,整个处理过程都没有添加相同的头
建议???http客户端等效物应为:
const headers = new HttpParams().set('Authorization', pass);
return this.httpClient.post(myServiceUrl, {}, {headers: headers});
HttpClient.post
方法具有以下签名:
post(url: string, body: any | null, options: OptionsType)
其中选项类型
如下(相当于请求选项
)
从那里,您可以指定标头或参数,如:
const options = {
headers: new HttpHeaders().append('key', 'value'),
params: new HttpParams().append('key', 'value')
}
this.httpClient.post(url, {}, options)
您还可以通过在我的
getHeaders(token)
服务中创建一个方法来查看我以前所做的工作:
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))代码>
还有一个HttpInterceptor可以自动处理请求,下面是一篇文章:
我已经使用Firebase Auth为我的令牌完成了这项工作。
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 ${token}`
}
});
return next.handle(request);
})
);
}
getToken() {
return Observable.fromPromise(this.afAuth.auth.currentUser.getIdToken());
}
}
@Injectable()
导出类TokenInterceptor实现HttpInterceptor{
afAuth:任何;
建造师(
私人注射器
) { }
拦截(请求:HttpRequest,下一步:HttpHandler):可观察{
this.afAuth=this.inj.get(AngularFireAuth);
返回此.getToken().pipe(
开关映射(令牌=>{
request=request.clone({
集合标题:{
授权:`Bearer${token}`
}
});
下一步返回。处理(请求);
})
);
}
getToken(){
返回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_拦截器,useClass:TokenInterceptor,multi:true}
这里所做的是为自动处理的每个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Firebase Auth特有的,因为这就是JWT令牌的来源。希望这能有所帮助 根据RequestOptions
替换为HttpRequest
HttpParams
是从同一位置导入的新版本。属性“头”的类型不兼容。类型“HttpParams”不可分配给类型“HttpHeaders”
getHeaders(token) {
return new HttpHeaders().set('Authorization', `Bearer ${token}`);
}
@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());
}
}