From a627110758886dc739bc9a4fa8c0e186d03676e8 Mon Sep 17 00:00:00 2001
From: Anders Nauman <anders.nauman@gmail.com>
Date: Fri, 3 Nov 2023 17:04:44 +0100
Subject: [PATCH] Make sure 'code' returns None instead of crashing if key is
 missing.

---
 authlib/integrations/flask_client/apps.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/authlib/integrations/flask_client/apps.py b/authlib/integrations/flask_client/apps.py
index 7567f4b3..84ac8c0d 100644
--- a/authlib/integrations/flask_client/apps.py
+++ b/authlib/integrations/flask_client/apps.py
@@ -85,12 +85,12 @@ def authorize_access_token(self, **kwargs):
                 raise OAuthError(error=error, description=description)
 
             params = {
-                'code': request.args['code'],
+                'code': request.args.get('code'),
                 'state': request.args.get('state'),
             }
         else:
             params = {
-                'code': request.form['code'],
+                'code': request.form.get('code'),
                 'state': request.form.get('state'),
             }