Add in subjects from messages correctly

dashboard-server/klaviyo-server/routes/index.js

@@ -1,18 +1,16 @@
 import express from 'express';
 import { createEventsRouter } from './events.routes.js';
+import { createMetricsRoutes } from './metrics.routes.js';
 import { createCampaignsRouter } from './campaigns.routes.js';
 import { createReportingRouter } from './reporting.routes.js';
 
 export function createApiRouter(apiKey, apiRevision) {
   const router = express.Router();
 
-  // Mount events routes
+  // Mount routers
   router.use('/events', createEventsRouter(apiKey, apiRevision));
-
-  // Mount campaigns routes
+  router.use('/metrics', createMetricsRoutes(apiKey, apiRevision));
   router.use('/campaigns', createCampaignsRouter(apiKey, apiRevision));
-
-  // Mount reporting routes
   router.use('/reporting', createReportingRouter(apiKey, apiRevision));
 
   return router;