Editing Understanding OAuth 2.0: Token-Based Authorization (section)

=== Authorization Code Flow ===

This is the most secure flow and is used for server-to-server communication. It involves an intermediate authorization code that the client exchanges for an access token.

'''Steps''':
# The user logs into an authorization server and grants permissions to the client.
# The authorization server redirects back with an authorization code.
# The client exchanges the authorization code for an access token using a secure request.
# The client uses the access token to make API requests on behalf of the user.
'''Enhancements''': This flow can be secured further using PKCE (Proof Key for Code Exchange) to prevent code interception attacks.