我正在我的应用中创建一个全局授权标头。我已经使用了拦截器,所以我不会在我的get()函数中声明授权头。我是否正确实现了拦截器,因为当我调用get()函数时,它仍然要求令牌。它说没有提供令牌。我的auth.interceptor有问题吗?我应该在每个get()函数中声明授权标头承载令牌吗?我以为每次有发送/接收请求时都会调用拦截器?
auth.interceptor.ts
@Injectable()
export class AuthInterceptor implements HttpInterceptor {
private authService: AuthService;
constructor(private injector: Injector) {}
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
// Get the auth header from the service.
this.authService = this.injector.get(AuthService);
const token = this.authService.getToken();
if (token) {
req = req.clone({ headers: req.headers.set('Authorization', 'Bearer ' + token) });
}
if (!req.headers.has('Content-Type')) {
req = req.clone({ headers: req.headers.set('Content-Type', 'application/json') });
}
req = req.clone({ headers: req.headers.set('Accept', 'application/json') });
return next.handle(req);
}
}
products.component.ts
getAll() {
return this.httpClient.get<any>(this.url).map(response => response.json());
}
答案 0 :(得分:1)
你做得对!
拦截器用于拦截所有http呼叫,您可以更改全局请求。
我认为这些条件存在问题。你可以调试它们并解决它们。
if (token) {
req = req.clone({ headers: req.headers.set('Authorization', 'Bearer ' + token) });
}
if (!req.headers.has('Content-Type')) {
req = req.clone({ headers: req.headers.set('Content-Type', 'application/json') });
}
也许有些人他们正在返回null!
但是如果时间是获取令牌的问题,您可以进行异步调用以获取令牌。
this.authService.LoginUser().subscribe(( token) => {
if (token) {
req = req.clone({ headers: req.headers.set('Authorization', 'Bearer ' + token) });
}
if (!req.headers.has('Content-Type')) {
req = req.clone({ headers: req.headers.set('Content-Type', 'application/json') });
}
req = req.clone({ headers: req.headers.set('Accept', 'application/json') });
return next.handle(req);
}
});