「✨」 feat: added exporter to node shitty code (yes thats mine and ???)

src/api/user/default.js

@@ -1,8 +1,10 @@
 import fastifyJWT from '@fastify/jwt';
 import fastifyCookie from '@fastify/cookie';
 import Database from 'better-sqlite3';
+import client from 'prom-client';
 
 var env = process.env.NODE_ENV || 'development';
+const collectDefaultMetrics = client.collectDefaultMetrics
 
 let database;
 
@@ -57,6 +59,30 @@ const deleteFriends = database.prepare('DELETE FROM friends WHERE username = ?;'
  */
 export default async function(fastify, options) {
 
+	collectDefaultMetrics({ labels: { service: "auth-api" } })
+	client.register.setDefaultLabels({ service: "auth-api" })
+
+	const httpRequestCounter = new client.Counter({
+		name: 'http_requests_total',
+		help: 'Total number of HTTP requests',
+		labelNames: ['method', 'route', 'status_code'],
+	})
+
+	fastify.addHook('onResponse', (req, res, done) => {
+		httpRequestCounter.inc({
+			method: req.method,
+			route: req.routerPath || req.url,
+			status_code: res.statusCode,
+		})
+		done()
+	})
+	fastify.get('/metrics', async (req, reply) => {
+		reply
+			.header('Content-Type', client.register.contentType)
+			.send(await client.register.metrics())
+	})
+
+
 	fastify.register(fastifyJWT, {
 		secret: process.env.JWT_SECRET || '123456789101112131415161718192021',
 		cookie: {