** UPDATE ** 现在也记录在 Firebase REST 文档中的 Exchange a refresh token for an ID token 部分:

** UPDATE ** this is also now documented in Firebase REST docs under Exchange a refresh token for an ID token section:

https://firebase.google.com/docs/reference/rest/auth/#section-refresh-token

目前我发现的唯一方法是在这里:https://developers.google.com/identity/toolkit/reference/securetoken/rest/v1/token

Currently the only way I found to do this is here: https://developers.google.com/identity/toolkit/reference/securetoken/rest/v1/token

您必须发出 HTTP 请求:

You must make an HTTP request:

POST https://securetoken.googleapis.com/v1/token?key=YOUR_KEY

可以在 Google 开发者控制台中找到 YOUR_KEY 的位置 >API 管理器凭据.它位于 API Keys 部分下.

Where YOUR_KEY can be found in the Google developers console > API Manager > Credentials. It's under the API Keys section.

确保请求正文的结构如下:

Make sure request body is structured in the following format:

grant_type=refresh_token&refresh_token=REFRESH_TOKEN

其中 REFRESH_TOKEN 是 Firebase 用户对象登录时的刷新令牌.

Where REFRESH_TOKEN is the refresh token from Firebase user object when they signed in.

您必须设置标题 Content-Type: application/x-www-form-urlencoded 否则您将收到错误(例如MISSING_GRANT_TYPE").

You must set the header Content-Type: application/x-www-form-urlencoded or you will get errors (e.g. "MISSING_GRANT_TYPE").

POST 调用将返回一个新的 idToken(以前称为 access_token)

The POST call will return a new idToken (used to be called access_token)