Finlay可以通过以下代码交换授权代码，以从cognito auth中检索access_token，刷新和id_token:

Finlay got the way to exchange Authorization code to retrieve the access_token along with the refresh and id_token from cognito auth with below code:

response = requests.post(url + '/oauth2/token',{'Content-Type':'application/x-www-form-urlencoded', 'grant_type': grant_type, 'client_id': App_client_id,  'code': code, 'redirect_uri': 'http://localhost:5000/login'})
print(response.json())

谢谢