授权不记名令牌 Angular 5

Question

我很困惑如何在 Angular 5 中为简单的 Get 请求创建一个好的 header。

这就是我需要在 Angular 中做的事情：

这是我目前所拥有的：

  getUserList(): Observable<UserList[]> {
    const headers = new Headers();
    let tokenParse = JSON.parse(this.token)             
    headers.append('Authorization', `Bearer ${tokenParse}`);
    const opts = new RequestOptions({ headers: headers });  
    console.log(JSON.stringify(opts));
    const users = this.http.get<UserList[]>(this.mainUrl, opts)
    return users
            .catch(this.handleError.handleError);         
  }

这是我 console.log 中的回复：

{"method":null,"headers":{"Authorization":["Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImp0aSI6ImYwODZlM2FiYTk0ZjVhMjVmNDhiNzlkYmI2YWUwOWY4YzE2MTUyMzg2N2I5MDZiY2MzNWQyNWJiYTZmYTE4YjEwZjA1MjZiNThkZjE2Y2FjIn0.eyJhdWQiOiJmMDExY2M1OC00MGNlLTQzYTktOGY3MS04NDI0OTRlM2E5OTciLCJqdGkiOiJmMDg2ZTNhYmE5NGY1YTI1ZjQ4Yjc5ZGJiNmFlMDlmOGMxNjE1MjM4NjdiOTA2YmNjMzVkMjViYmE2ZmExOGIxMGYwNTI2YjU4ZGYxNmNhYyIsImlhdCI6MTUyMzU1MTQ0NSwibmJmIjoxNTIzNTUxNDQ1LCJleHAiOjE1MjM1NTQ0NDUsInN1YiI6IjIiLCJzY29wZXMiOlsiYXV0aGVudGljYXRlZCIsImFuZ3VkcnUiXX0.E-WdQTl7nPDW0gj0rohfql-QgnAinzvDxPR-pySMrG07XFY9tA6Ex7IL23pDBmKDmQO8RcZKa0L5r6SRQq9_iqzMWzn5Zxp94J9TJrpZ2KGMoLR_FbK_tpC5G5q5vUnCe3q34sH7cPdT_2cI704OWWaYmIUKKpXWUIG0PJw_uKSJ_uOifPv59RZGQkoaQ9gPywDKe-uamm1Faug-Kk2YnFMoEJq7ou19zyxgdpX80ZTPUae67uB0PGLRuvxfGaqVsJ8k0NunAY3-pyUnBwR_3eeuOxf4TyfW2aiOJ9kuPgsfV4Z1JD7nMpNtTHMJaXEyNkBW8RlYHD1pj4dkdnsDmw"]},"body":null,"url":null,"withCredentials":null,"responseType":null}

看起来很漂亮。但是给我这个错误

GET http://druang.dd:8080/user-list?_format=json 403 (Forbidden)

还有一条线索可以解开这个谜团。在 Sublime 文本中，如果我将鼠标放在 opts 上，它会显示如下内容：

ERROR in src/app/services/userlist.service.ts(33,59): error TS2345: Argument of type 'RequestOptions' is not assignable to parameter of type '{ headers?: HttpHeaders | { [header: string]: string | string[]; }; observe?: "body"; params?: Ht...'. Types of property 'headers' are incompatible. Type 'Headers' is not assignable to type 'HttpHeaders | { [header: string]: string | string[]; }'. Type 'Headers' is not assignable to type '{ [header: string]: string | string[]; }'. Index signature is missing in type 'Headers'.

有什么想法吗？？这是完整的 Git repo 感谢您的帮助！

Answer 1

两件事：

headers.append(...) 不会改变 header 的 object，因此您的授权 header 不会被发送。你需要做 headers = headers.append(...)
尝试this.http.get<UserList[]>(this.mainUrl, { headers: headers });

Answer 2

我不是很擅长编程，但有一点尝试和失败如果找到这个：

  getUserList(): Observable<UserList[]> {
    let tokenParse = JSON.parse(this.token)    
    // let myHeaders = new Headers();
    // myHeaders.set('Authorization', `Bearer ${tokenParse}`);
    // let options = new RequestOptions({ headers: myHeaders});
    const users = this.http.get<UserList[]>(this.mainUrl, { headers:new HttpHeaders().append('Authorization', `Bearer ${tokenParse}`)})
    // const users = this.http.get<UserList[]>(this.mainUrl, options);
    return users
            .catch(this.handleError.handleError);         
  }

我使用 .set 还是 .append 并不重要，归根结底，这两种情况都有效...

我真的不知道发生了什么，所以，如果有人想在评论中解释它，欢迎您...

Answer 3

我建议使用 HttpInterceptor 为传出请求设置默认 HTTP header，而不是向每个调用添加额外的 HTTP header。

HTTP Client - Setting default headers @ angular.io

在您的示例中，您可以执行以下操作：

import { Http, Headers, Response } from '@angular/http';

getLoggedInUser(auth_token): Observable<any> {
  const headers = new Headers({
    'Content-Type': 'application/json',
    'Authorization': `Bearer ${auth_token}`
  })
  return this.http.get(apiUrl, { headers: headers })
}

Answer 4

对于 get 请求，我使用了以下代码并且有效

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

getServerList(){
    var reqHeader = new HttpHeaders({ 
        'Content-Type': 'application/json',
        'Authorization': 'Bearer ' + JSON.parse(localStorage.getItem('mpManagerToken'))
     });
    return this.http.get<Server[]>(`${environment.apiUrl}/api/Servers/GetServerList`, { headers: reqHeader });
}

Answer 5

在Angular6和7中，该方法可用于拦截所有HTTP请求并添加bearer token。

此处提供了实施教程。 Youtube，这个频道有所有的教程。

拦截器组件

import {
  HttpInterceptor,
  HttpRequest,
  HttpHandler,
  HttpUserEvent,
  HttpEvent
} from '@angular/common/http';
import { Observable } from 'rxjs';
import { UserService } from '../shared/user.service';
import { tap } from 'rxjs/operators';
import { Injectable } from '@angular/core';
import { Router } from '@angular/router';

@Injectable()
export class AuthInterceptor implements HttpInterceptor {
  constructor(private router: Router) {}

  intercept(
    req: HttpRequest<any>,
    next: HttpHandler
  ): Observable<HttpEvent<any>> {
    if (req.headers.get('No-Auth') === 'True') {
      return next.handle(req.clone());
    }

    if (localStorage.getItem('userToken') != null) {
      const clonedreq = req.clone({
        headers: req.headers.set(
          'Authorization',
          'Bearer ' + localStorage.getItem('userToken')
        )
      });
      return next.handle(clonedreq).pipe(
        tap(
          succ => {},
          err => {
            if (err.status === 401) {
              // this.router.navigateByUrl('/login');
            } else if ((err.status = 403)) {
              // this.router.navigateByUrl('/forbidden');
              // alert(err.localStorage.getItem('userToken'));
            }
          }
        )
      );
    } else {
      this.router.navigateByUrl('/login');
    }
  }
}

保护组件

import { Injectable } from '@angular/core';
import {
  CanActivate,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  Router
} from '@angular/router';
import { Observable } from 'rxjs';
import { UserService } from '../shared/user.service';
import { ToastrService } from 'ngx-toastr';

@Injectable()
export class AuthGuard implements CanActivate {
  constructor(
    private router: Router,
    private userService: UserService,
    private toastr: ToastrService
  ) {}
  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot
  ): boolean {
    if (localStorage.getItem('userToken') != null) {
      const roles = next.data['roles'] as Array<string>;
      if (roles) {
        const match = this.userService.roleMatch(roles);
        if (match) {
          return true;
        } else {
          // tslint:disable-next-line: quotemark
          this.toastr.info("You don't have access to this page");
          this.router.navigate(['/login']);
          // this.router.navigate(['/forbidden']);
          return false;
        }
      } else {
        return true;
      }
    }
    this.router.navigate(['/login']);
    return false;
  }
}

将其添加到 app.modules.ts

providers: [
    ConfirmationDialogService,
    UserService,
    DoctorService,
    { provide: OwlDateTimeIntl, useClass: DefaultIntl },
    { provide: OWL_DATE_TIME_FORMATS, useValue: MY_MOMENT_FORMATS },
    AuthGuard,
    {
      provide: HTTP_INTERCEPTORS,
      useClass: AuthInterceptor,
      multi: true
    }
  ],

然后把守卫加到route

 {
    path: 'adminPanel',
    component: AdminPanelComponent,
    canActivate: [AuthGuard],
    data: { roles: ['Admin'] }
  },

Answer 6

'Authorization': 'Bearer ' + access_token,

有效

Answer 7

虽然@HassanRahman 为 get 个请求显示它，但对于 post 个请求，

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

getServerList(){

    postData = { your data }
    var reqHeader = new HttpHeaders({ 
        'Content-Type': 'application/json',
        'Authorization': 'Bearer ' + JSON.parse(localStorage.getItem('mpManagerToken'))
     });
    return this.http.post<Server[]>(`${environment.apiUrl}/api/Servers/GetServerList`, postData, { headers: reqHeader });
}

Answer 8

我已经使用了上述所有建议的格式来附加带有访问令牌的 headers，它在请求 header 中添加空值，如“Authorization Bearer null”。如果我在 adding/cloning headers 行之前打印 accesstoken，accesstoken 值将打印在浏览器控制台中。这是我使用的格式。

console.log("Inside Interceptor accesstoken : " + this.oauthService.getAccessToken());
    req = req.clone({
      setHeaders: {
         Authorization: 'Bearer ' +  this.oauthService.getAccessToken()
      }
    });
    return next.handle(req);

Answer 9

另一种方式使用 set 或 append 函数设置 HttpHeader

const reqHeader = new HttpHeaders().set('Authorization', 'Bearer ' + this.accessToken);

return this.http.get<any[]>(this.webApiUrlEndPoint, { headers: reqHeader});

授权不记名令牌 Angular 5

Authorization bearer token Angular 5

angular

header

authorization

bearer-token