Need to check for token expiry

[mtastafford]

Need to check for expired token to validate refresh token request.

Add expiry_date datetime field to model?

7-days (606024*7 seconds) after access_token issue...

[hakancelikdev]

Good issue, I will try to add it tomorrow, but until you can use this code for update and get access_token

• check in readme https://github.com/coogger/steemconnect_auth/commit/a99c8b926056c256644348bfdb0e6f92ca7465b8

from steemconnect_auth.models import SteemConnectUser

steem_connect_user = SteemConnectUser.objects.filter(user="username")
new_access_token = steem_connect_user.update_access_token("your app secret")