From c223bf81facadb39e8f1d89d8c561dcc3a58832b Mon Sep 17 00:00:00 2001
From: Stephen Hoover <shoover@civisanalytics.com>
Date: Wed, 21 Sep 2016 21:01:21 -0500
Subject: [PATCH] ENH Preserve session data when reporting an unhandled error

Give users a chance to recover by leaving the session open and persisting the input session data.
---
 lambda_function.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lambda_function.py b/lambda_function.py
index cae6fab..0bfc615 100644
--- a/lambda_function.py
+++ b/lambda_function.py
@@ -34,4 +34,6 @@ def lambda_handler(event, context):
                                is_end=False)
     except Exception as err:  # NOQA
         log.exception('Unhandled exception for event\n%s\n' % str(event))
-        return reply.build("Sorry, something went wrong. Please try again.")
+        return reply.build("Sorry, something went wrong. Please try again.",
+                           persist=event['session'].get('attributes', {}),
+                           is_end=False)