如何检查 foursquare api oauth 令牌过期?

How to check foursquare api oauth token expiration?

我正在寻找解释以下详细信息的文档:

谢谢

显然他们没有:

通过Foursquare Oauth API docs

Access tokens allow apps to make requests to Foursquare on the behalf of a user. Each access token is unique to the user and consumer key. Access tokens do not expire, but they may be revoked by the user. If your application doesn't require connecting with Foursquare users, you can skip directly to Userless Access.