adding a default url. And some debugging information to see if we hit he endpoint in the logs.

config/default.py

@@ -27,6 +27,7 @@ FRONTEND_AUTH_CALLBACK = environ.get('FRONTEND_AUTH_CALLBACK', default="http://l
 SWAGGER_AUTH_KEY = environ.get('SWAGGER_AUTH_KEY', default="SWAGGER")
 
 #: Default attribute map for single signon.
+SSO_LOGIN_URL = '/login'
 SSO_ATTRIBUTE_MAP = {
     'eppn': (False, 'eppn'),  # dhf8r@virginia.edu
     'uid': (True, 'uid'),  # dhf8r

crc/api/user.py

@@ -1,3 +1,5 @@
+import json
+
 import connexion
 from flask import redirect, g
 
@@ -33,6 +35,7 @@ def get_current_user():
 
 @sso.login_handler
 def sso_login(user_info):
+    app.logger.info("Login from Shibboleth happening. " + json.dump(user_info))
     # TODO: Get redirect URL from Shibboleth request header
     _handle_login(user_info)