add names to endpoints

Author: tcouper

services/persist-handler/src/index.ts

@@ -414,7 +414,7 @@ function buildGraphProjectionItem(input: {
   const learnerNodeId = `learner:${input.learnerId}`;
   const sessionNodeId = `session:${input.sessionId}`;
   const entityNames = buildEntityNameMap(input.entities);
-  const learnerName = entityNames.get(input.learnerId) ?? input.learnerId;
+  const learnerName = entityNames.get(input.learnerId) ?? firstRefName(input.events, "actor") ?? input.learnerId;
 
   const nodeMap = new Map<string, ProjectionNode>();
   const edgeMap = new Map<string, ProjectionEdge>();
@@ -569,6 +569,16 @@ function entitiesForEventGroup(
   });
 }
 
+function firstRefName(events: Record<string, unknown>[], refKey: "actor" | "group" | "object" | "edApp"): string | undefined {
+  for (const event of events) {
+    const name = refName(event[refKey]);
+    if (name) {
+      return name;
+    }
+  }
+  return undefined;
+}
+
 async function markSubmissionStatus(
   submissionPk: string,
   status: "PROCESSING" | "PERSISTED" | "FAILED",