javascript - fetch post 调用后重定向

Question

我正在使用访问管理 (AM) 服务器创建社交登录页面。 当用户单击登录按钮时，我会对 AM 服务器进行 fetch http post 调用。 AM 服务器生成带有身份验证 cookie 的 HTTP 301 重定向响应到社交登录页面。我需要以某种方式遵循此重定向响应并在网络浏览器中显示新内容。

用户界面:ReactJS

请求:

POST /api/auth/socialauth/initiate HTTP/1.1
Host    example.com
User-Agent  Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:49.0)
Accept  */*
Accept-Language en-US,en;q=0.5
Accept-Encoding gzip, deflate
origin  http://web.example.com:8080
Referer http://web.example.com:8080/myapp/login
Cookie  authId=...; NTID=...

回应

HTTP/1.1 307 Temporary Redirect
https://www.facebook.com/dialog/oauth?client_id=...&scope=public_profile%2Cemail&redirect_uri=http%3A%2F%2Fam.example.com%3A8083%2Fopenam%2Foauth2c%2FOAuthProxy.jsp&response_type=code&state=qtrwtidnwdpbft4ctj2e9mv3mjkifqo

react 代码:

initiateSocialLogin() {
    var url = "/api/auth/socialauth/initiate";

    fetch(url, { method: 'POST' })
        .then(response => {
            // HTTP 301 response
            // HOW CAN I FOLLOW THE HTTP REDIRECT RESPONSE?
        })
        .catch(function(err) {
            console.info(err + " url: " + url);
        });
}

如何跟踪重定向响应并在网络浏览器中显示新内容？

Answer 1

Request.redirect可以是“follow”、“error”或“manual”。

If it is "follow", fetch() API follows the redirect response (HTTP status code = 301,302,303,307,308).

If it is "error", fetch() API treats the redirect response as an error.

If it is "manual", fetch() API doesn't follow the redirect and returns an opaque-redirect filtered response which wraps the redirect response.

由于您想在获取后重定向，只需将其用作

fetch(url, { method: 'POST', redirect: 'follow'})
    .then(response => {
        // HTTP 301 response
    })
    .catch(function(err) {
        console.info(err + " url: " + url);
    });