我试图拦截http响应并重定向任何401,但下面的错误对象只返回以下字符串。我期待至少找到状态代码..
401 - 未经授权的详细信息:Http失败响应 http://localhost:4200/api/foo:401未经授权
我可以在网络选项卡中看到服务器正在返回格式良好的401。关于如何正确阅读它们的任何想法?
intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
const authRequest = request.clone({
setHeaders: {
Authorization: `Bearer ${this.authService.getToken() || ''}`
}
});
return next.handle(authRequest).do(event => { }, err => {
if (err instanceof HttpErrorResponse && err.status === 401) {
this.authService.handleAuthentication();
}
});
}
编辑:我刚刚注意到,如果我关闭Web服务器以强制504网关超时,我会将错误视为一个完整的字符串,而且没有错误代码。
504 - 网关超时详细信息:Http失败响应 http://localhost:4200/api/foo:504网关超时
答案 0 :(得分:1)
尝试使用catch
return next
.handle(authReq)
.do(event => {
if (event instanceof HttpResponse) {
/* Make your code here */
}
})
.catch((err) => {
if (err.status === 401 && err.statusText === 'Unauthorized') {
}
return Observable.throw(err);
});
答案 1 :(得分:1)
通过执行以下操作,我能够在Angular 5中正确运行我的Auth Interceptor:
import { Injectable } from '@angular/core';
import {
HttpErrorResponse,
HttpEvent,
HttpHandler,
HttpInterceptor,
HttpRequest,
} from '@angular/common/http';
import { Observable } from 'rxjs/Observable';
import { AuthService } from '../services/auth.service';
@Injectable()
export class AuthInterceptor implements HttpInterceptor {
constructor(
private authService: AuthService
) { }
public intercept(
req: HttpRequest<any>,
next: HttpHandler,
): Observable<HttpEvent<any>> {
return this.authService.getToken().flatMap((token: string) => {
return next.handle(req.clone({ setHeaders: { Authorization: `Bearer ${token}` } }));
}).do(() => { }, (error: any) => {
if (error instanceof HttpErrorResponse && (error as HttpErrorResponse).status === 401) {
this.authService.login();
}
});
}
}
答案 2 :(得分:0)
好的,这里的问题是我有一个预先存在的错误拦截器,它在我的401拦截器之前修改了响应。这家伙正在整理所有东西。感谢上述所有回复。
答案 3 :(得分:0)
对于Angular 6,请看这篇文章:
HttpClient Interceptor forces request duplicates