Add get_context() to prepare a context object

Author: cpd67

channels_graphql_ws/graphql_ws_consumer.py

@@ -540,6 +540,7 @@ async def _on_gql_start(self, op_id, payload):
             context.channel_name = self.channel_name
             context.graphql_operation_name = op_name
             context.graphql_operation_id = op_id
+            context = self.get_context(context)
 
             # Process the request with Graphene and GraphQL-core.
             doc_ast, op_ast, errors = await self._on_gql_start__parse_query(
@@ -1230,6 +1231,12 @@ def _spawn_background_task(self, awaitable):
         self._background_tasks.add(background_task)
         return background_task
 
+    def get_context(self, context):
+        """
+        Prepare the context object to use during GraphQL execution.
+        """
+        return context
+
     @property
     def _channel_layer(self):
         """Channel layer."""