Merge pull request #112 from blockfrost/chore/more-metrics

chore(metrics): report memory usage metrics
blockfrost · Oct 28, 2021 · 3b2e8fc · 3b2e8fc
2 parents e8aedbe + 8a676d4
commit 3b2e8fc
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/server.ts b/src/server.ts
@@ -58,6 +58,12 @@ app.get('/status', (_req, res) => {
 app.get('/metrics', (_req, res) => {
   const metrics = {
     websocket_link_clients: wss.clients.size,
+    // https://nodejs.org/api/process.html#processmemoryusage
+    websocket_link_rss: process.memoryUsage().rss,
+    websocket_link_heap_total: process.memoryUsage().heapTotal,
+    websocket_link_heap_used: process.memoryUsage().heapUsed,
+    websocket_link_external: process.memoryUsage().external,
+    websocket_link_array_buffers: process.memoryUsage().arrayBuffers,
   };
   res.setHeader('Content-Type', 'text/plain');
   res.send(jsonToPrometheus(metrics));