diff --git a/streaming/index.js b/streaming/index.js index 0350c488d..e207411f2 100644 --- a/streaming/index.js +++ b/streaming/index.js @@ -850,6 +850,18 @@ const startWorker = async (workerId) => { res.end('OK'); }); + app.get('/metrics', (req, res) => server.getConnections((err, count) => { + res.writeHeader(200, { 'Content-Type': 'application/openmetrics-text; version=1.0.0; charset=utf-8' }); + res.write('# TYPE connected_clients gauge\n'); + res.write('# HELP connected_clients The number of clients connected to the streaming server\n'); + res.write(`connected_clients ${count}.0\n`); + res.write('# TYPE connected_channels gauge\n'); + res.write('# HELP connected_channels The number of Redis channels the streaming server is subscribed to\n'); + res.write(`connected_channels ${Object.keys(subs).length}.0\n`); + res.write('# EOF\n'); + res.end(); + })); + app.use(authenticationMiddleware); app.use(errorMiddleware);