Authorization code processing OAuth 2.0

After clicking on the authorization URL at the first stage, the user is redirected to the Worksection login page if they have not yet logged in: 

or to the user selection page if the user has already been authorized: 

After successful authorization, the user is redirected to the access confirmation page:

If the user granted access on the approval page, they will be redirected to redirect_uri with the code parameter.
Please note that the authorization code is valid for 10 minutes.