OAuth2 Token Acquisition with OAuthlib and BackendApplicationClient

This function uses the OAuthlib library's OAuth2Session and BackendApplicationClient to obtain an OAuth2 token. First, a client is created, then an OAuth2 session is created, and finally, an access token is obtained by making a POST request to the specified token_url.

Technology Stack : Python, OAuthlib, requests

Code Type : Function

Code Difficulty : Intermediate

                
                    
def get_oauth2_token(client_id, client_secret, token_url, authorization_url):
    from oauthlib.oauth2 import BackendApplicationClient, OAuth2Session
    from requests import post

    # Create a client
    client = BackendApplicationClient(client_id=client_id)
    # Create an OAuth2 session
    session = OAuth2Session(client=client)
    # Fetch an access token
    token = session.fetch_token(token_url=token_url, client_id=client_id, client_secret=client_secret)
    return token