OAuth2 Access Token Refresh with Authlib

This function uses the OAuth2Session and RefreshToken classes from the Authlib library to refresh an OAuth2 access token. It first creates an OAuth2 session, then creates a RefreshToken object with the provided refresh token and token URL, and finally calls the refresh method to obtain a new access token.

Technology Stack : Authlib

Code Type : Function

Code Difficulty : Intermediate

                
                    
def refresh_token(client_id, client_secret, refresh_token, token_url):
    from authlib.integrations.requests_client import OAuth2Session
    from authlib.oauth2 import RefreshToken

    # Create an OAuth2 session
    session = OAuth2Session(client_id, client_secret)
    
    # Create a RefreshToken object
    token = RefreshToken(refresh_token, token_url)
    
    # Refresh the access token
    token = token.refresh(session)
    
    # Return the new access token
    return token.access_token