Needed an additional check for empty correlation keys - which on a RECEIVE message, should always match anything.

When finding messages to match a send, assure they are RECIEVE messages.

Fix some of the json output for messages sent to the front end

src/spiffworkflow_backend/models/message_instance.py

@@ -100,6 +100,11 @@ class MessageInstanceModel(SpiffworkflowBaseDBModel):
             # We know we have a match, and we can just return if we don't have to figure out the key
             return True
 
+        if self.correlation_keys == {}:
+            # Then there is nothing more to match on -- we accept any message with the given name.
+            return True
+
+
         # Loop over the receives' correlation keys - if any of the keys fully match, then we match.
         for expected_values in self.correlation_keys.values():
             if self.payload_matches_expected_values(

src/spiffworkflow_backend/services/message_service.py

@@ -1,6 +1,6 @@
 """Message_service."""
 from spiffworkflow_backend.models.db import db
-from spiffworkflow_backend.models.message_instance import MessageInstanceModel
+from spiffworkflow_backend.models.message_instance import MessageInstanceModel, MessageTypes
 from spiffworkflow_backend.models.message_instance import MessageStatuses
 from spiffworkflow_backend.models.message_triggerable_process_model import (
     MessageTriggerableProcessModel,
@@ -42,7 +42,8 @@ class MessageService:
 
         # Find available messages that might match
         available_receive_messages = MessageInstanceModel.query.filter_by(
-            name=message_instance_send.name, status=MessageStatuses.ready.value
+            name=message_instance_send.name, status=MessageStatuses.ready.value,
+            message_type=MessageTypes.receive.value
         ).all()
         message_instance_receive: MessageInstanceModel | None = None
         try: