Google access token expiration time
Oauth 2.0Oauth 2.0 Problem Overview
When I obtain an access_token from the Google API, it comes with an expires_in value. According to the documentation, this value indicates "The remaining lifetime of the access token".
What are the units of this value?
Oauth 2.0 Solutions
Solution 1 - Oauth 2.0
The spec says seconds:
https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-22#section-4.2.2
expires_in
OPTIONAL. The lifetime in seconds of the access token. For
example, the value "3600" denotes that the access token will
expire in one hour from the time the response was generated.
I agree with OP that it's careless for Google to not document this.
Solution 2 - Oauth 2.0
Have a look at: https://developers.google.com/accounts/docs/OAuth2UserAgent#handlingtheresponse
It says:
> Other parameters included in the response include expires_in and
> token_type. These parameters describe the lifetime of the token in
> seconds...
Solution 3 - Oauth 2.0
Since there is no accepted answer I will try to answer this one:
[s] - seconds
Solution 4 - Oauth 2.0
From Google OAuth2.0 for Client documentation,
-
expires_in -- The number of seconds left before the token becomes invalid.