Change log

2012-05-22 Version 1.2.2

2012-02-07 Version 1.1.0

Add OAuth2 token expiration support follow the OAuth2 protocol(http://tools.ietf.org/html/draft-ietf-oauth-v2-10#section-4.1.4).
Default, Yottaa OAuth2 will never expire the access token, unless user changes his/her password, so when you call the Users API and got the response:

error="expired_token", error_description="The access token has expired."

That means the access token has expired, and you need to refresh the access token. Please refer: http://tools.ietf.org/html/draft-ietf-oauth-v2-10#section-4.1.4

The tokens already generated before this version do not have the refresh_token support, but you can take the access_token as the refresh_token, they are set to the same.