通过捕获401

时间:2016-10-31 18:43:25

标签: angular typescript rxjs

我正在我的angular 2应用程序中实现刷新令牌,这是我的代码。我的刷新令牌后调用没有被调用。我在调用刷新令牌时也没有看到任何错误,以找到问题。感谢帮助

refreshToken(): Observable<any> {
        console.log("refreshing token");

        let body: string = 'grant_type=refresh_token&refresh_token=' + localStorage.getItem("refresh_token");
        let headers = new Headers();
        headers.append('Content-Type', 'application/x-www-form-urlencoded');
        let options = new RequestOptions({ headers: headers });

        return Observable.create(
            (observer: Observer<any>) => {
                this.http.post('https://fedqa.test.com/as/token.oauth2', body, options)
                    .map(res => res.json()).subscribe(
                    (data) => {
                        localStorage.removeItem("access_token");
                        localStorage.removeItem("refresh_token");
                        localStorage.setItem("access_token", data.access_token);
                        localStorage.setItem("refresh_token", data.refresh_token);
                        localStorage.setItem("token_type", data.token_type);
                        localStorage.setItem("expires_in", data.expires_in);
                    },
                    (error) => {
                        Observable.throw(error);
                    }
                    );
            });
    }

这是我的API调用,我检查401并执行refreshToken()函数,并在获得新的访问令牌后调用相同的函数。

getInspections(statusesinput: string[]): Observable<IInspection[]> {


        let body = JSON.stringify({ "Statuses": statusesinput });
        let headers = new Headers({ 'Content-Type': 'application/json' });
        headers.append('Authorization', 'Bearer' + localStorage.getItem("access_token"));
        headers.append('Access-Control-Allow-Origin', '*');
        let options = new RequestOptions({ headers: headers });

        return this.http.post(this._baseUrl + '/Inspections/ListInspections', body, options)
            .map((res: Response) => {
                this.inspections = res.json();
                return this.inspections;
            })
            .catch(initialError => {
                if (initialError && initialError.status === 401) {
                    this.refreshToken().flatMap((data) => {
                        if (localStorage.getItem("access_token") != null) {
                            // retry with new token

                            return this.getInspections(statusesinput);
                        } else {
                            return Observable.throw(initialError);
                        }
                    });
                } else {
                    return Observable.throw(initialError);
                }
            })

    }

1 个答案:

答案 0 :(得分:3)

尝试添加评论,但还没有权利..

您可以在此处找到您的问题 - Angular2: Catching 401 error for token refresh

尝试从refreshToken()方法中删除订阅。并在this.refreshToken().flatMap((data) => {

中执行localStorage代码
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