resolvers-fix

services/schema.py

@@ -1,7 +1,5 @@
-from ariadne import ScalarType, QueryType, MutationType
+from ariadne import ScalarType, QueryType, MutationType, SubscriptionType
 
-query = QueryType()
-mutation = MutationType()
 datetime_scalar = ScalarType("DateTime")
 
 
@@ -10,4 +8,7 @@ def serialize_datetime(value):
     return value.isoformat()
 
 
-scalars = {"DateTime": datetime_scalar}
+query = QueryType()
+mutation = MutationType()
+subscription = SubscriptionType()
+resolvers = [query, mutation, subscription, datetime_scalar]