Initial commit

metrics.js

@@ -0,0 +1,17 @@
+const client = require("prom-client");
+
+const collectDefaultMetrics = client.collectDefaultMetrics;
+collectDefaultMetrics();
+
+const onlinePlayers = new client.Gauge({
+  name: "game_online_players",
+  help: "Number of currently online players",
+  collect() {
+	this.set(Math.floor(Math.random() * 1000));
+  }
+});
+
+module.exports = {
+	register: client.register,
+	onlinePlayers
+};