From 81f235e5d60f7de1235db289bc5337dfcbaba618 Mon Sep 17 00:00:00 2001
From: Joseph Schorr <jschorr@gmail.com>
Date: Fri, 23 May 2014 15:20:40 -0400
Subject: [PATCH] Fix error when no token is returned by Github

---
 endpoints/callbacks.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/endpoints/callbacks.py b/endpoints/callbacks.py
index 43aa2ac6b..4085798b0 100644
--- a/endpoints/callbacks.py
+++ b/endpoints/callbacks.py
@@ -35,7 +35,11 @@ def exchange_github_code_for_token(code, for_login=True):
   get_access_token = client.post(app.config['GITHUB_TOKEN_URL'],
                                  params=payload, headers=headers)
 
-  token = get_access_token.json()['access_token']
+  json_data = get_access_token.json()
+  if not json_data:
+    return ''
+
+  token = json_data.get('access_token', '')
   return token