Refresh auth after expiration

When i leave my app open for a long time, i start getting “auth token expired” -responses from firebase. Is there a way to use the RefreshToken for refreshing the FirebaseToken, or should i just call a SignIn.. method again before ExpresIn?

[bezysoftware]

If you manage to implement it you can do a PR and I’ll merge it into this lib 😉

[bernhardgessler]

Are you sure you’d need to refresh the third party tokens as well? From what I understand from the docs and after playing with custom tokens is that any third party token is just used once initially, to receive a firebase token. That one can then be refreshed calling:

https://securetoken.googleapis.com/v1/token?key={apiKey}

Form data: grant_type:refresh_token refresh_token:{refreshToken}

Response:

{
  "access_token": "{seems to be identical with the idToken}",
  "expires_in": "3600",
  "token_type": "Bearer",
  "refresh_token": "{refreshToken. Seems to the the same as we passed in}",
  "id_token": "{newToken}",
  "user_id": "{UID}",
  "project_id": "{projectId}"
}

So shouldn’t it be enough to check before any query/insert if the token is about to expire. And if so, do a refresh first, then go on doing the query/insert?