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

spiffworkflow-backend/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(

spiffworkflow-backend/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:

spiffworkflow-frontend/src/interfaces.ts

@@ -112,12 +112,13 @@ export interface MessageInstance {
   process_model_identifier: string;
   process_model_display_name: string;
   process_instance_id: number;
-  message_identifier: string;
+  name: string;
   message_type: string;
   failure_cause: string;
   status: string;
   created_at_in_seconds: number;
   message_correlations?: MessageCorrelations;
+  correlation_keys: any;
 }
 
 export interface ReportFilter {

spiffworkflow-frontend/src/routes/MessageInstanceList.tsx

@@ -64,14 +64,14 @@ export default function MessageInstanceList() {
           open={!!messageInstanceForModal}
           passiveModal
           onRequestClose={handleCorrelationDisplayClose}
-          modalHeading={`Message ${messageInstanceForModal.id} (${messageInstanceForModal.message_identifier}) ${messageInstanceForModal.message_type} data:`}
+          modalHeading={`Message ${messageInstanceForModal.id} (${messageInstanceForModal.name}) ${messageInstanceForModal.message_type} data:`}
           modalLabel="Details"
         >
           {failureCausePre}
           <p>Correlations:</p>
           <pre>
             {JSON.stringify(
-              messageInstanceForModal.message_correlations,
+              messageInstanceForModal.correlation_keys,
               null,
               2
             )}
@@ -95,21 +95,24 @@ export default function MessageInstanceList() {
           </>
         );
       }
+      let processLink = <span>External Call</span>
+      let instanceLink = <span></span>
+      if (row.process_instance_id != null) {
+        processLink = FormatProcessModelDisplayName(row)
+        instanceLink =
+          <Link
+            data-qa="process-instance-show-link"
+            to={`/admin/process-instances/${modifyProcessIdentifierForPathParam(
+              row.process_model_identifier)}/${row.process_instance_id}`}>
+            {row.process_instance_id}
+          </Link>
+      }
       return (
         <tr key={row.id}>
           <td>{row.id}</td>
-          <td>{FormatProcessModelDisplayName(row)}</td>
+          <td>{processLink}</td>
-          <td>
+          <td>{instanceLink}</td>
-            <Link
+          <td>{row.name}</td>
-              data-qa="process-instance-show-link"
-              to={`/admin/process-instances/${modifyProcessIdentifierForPathParam(
-                row.process_model_identifier
-              )}/${row.process_instance_id}`}
-            >
-              {row.process_instance_id}
-            </Link>
-          </td>
-          <td>{row.message_identifier}</td>
           <td>{row.message_type}</td>
           <td>
             <Button