add user properties if more that one identifier is present

packages/destination-actions/src/destinations/heap/trackEvent/index.ts

@@ -119,7 +119,8 @@ const action: ActionDefinition<Settings, Payload> = {
       idempotency_key: payload.message_id
     }
 
-    event.user_identifier = getUserIdentifier({ identity: payload.identity, anonymous_id: payload.anonymous_id })
+    const identity = getUserIdentifier({ identity: payload.identity, anonymous_id: payload.anonymous_id })
+    event.user_identifier = identity
 
     if (payload.timestamp && dayjs.utc(payload.timestamp).isValid()) {
       event.timestamp = dayjs.utc(payload.timestamp).toISOString()
@@ -131,10 +132,30 @@ const action: ActionDefinition<Settings, Payload> = {
       library: 'Segment'
     }
 
-    return request('https://heapanalytics.com/api/integrations/track', {
+    const responses = []
+    const trackCall = request('https://heapanalytics.com/api/integrations/track', {
       method: 'post',
       json: payLoad
     })
+
+    responses.push(trackCall)
+
+    if (payload.identity && payload.anonymous_id) {
+      const addUserPropertiesPayload = {
+        app_id: settings.appId,
+        identity,
+        properties: {
+          anonymous_id: payload.anonymous_id
+        }
+      }
+      const addUserPropertiesRequest = request('https://heapanalytics.com/api/add_user_properties', {
+        method: 'post',
+        json: addUserPropertiesPayload
+      })
+      responses.push(addUserPropertiesRequest)
+    }
+
+    return Promise.all(responses)
   }
 }