php - 更新长期访问 token 服务器端

Question

我们正在从 Facebook 正常检索长期存在的访问 token ，但是我们需要自动更新此 token ，以使其不会每 60 天过期。

阅读文档，它说您只能使用端点交换短期 token 。

由于我们没有短期 token ，我们如何才能在服务器端执行此操作而不必每 60 天手动重新授权一次？

Answer 1

无限扩展 token 是不可能的。请在此处查看场景 4 https://developers.facebook.com/roadmap/offline-access-removal/ :

Using the new endpoint below, you will be able to extend the expiration time of an existing, non-expired, short-lived user access_token. Please note, the endpoint can only be used to extend the short-lived user access_tokens. If you pass an access_token that had a long-lived expiration time, the endpoint will simply pass that same access_token back to you without altering or extending the expiration time.

To get the long-lived user access_token simply pass your own client_id (your app_id), your app_secret, and the non-expired, short-lived access_token to the endpoint below. You will be returned a new long-lived user access_token; this access_token will exist in addition to the short-lived access_token that was passed into the endpoint. If you would like to refresh a still valid long-lived access_token, you will have to get a new short-lived user access_token first and then call the same endpoint below. The returned access_token will have a fresh long-lived expiration time, however, the access_token itself may or may not be the same as the previously granted long-lived access_token.