Add dependencies and missing exception handling

app/corpora/cqi_over_socketio/utils.py

@@ -35,7 +35,10 @@ def cqi_over_socketio(f):
         try:
             return_value = f(**f_args)
         except BrokenPipeError:
-            pass
+            return_value = {
+                'code': 500,
+                'msg': 'Internal Server Error'
+            }
         except cqi.errors.CQiException as e:
             return_value = {
                 'code': 500,

requirements.txt

@@ -13,6 +13,7 @@ Flask-SocketIO~=5.1
 Flask-SQLAlchemy
 Flask-WTF
 gunicorn
+hiredis
 jsonpatch
 jsonschema
 psycopg2