'use strict'; const { register: prometheusRegister } = require('prom-client'); const Controller = require('./controller'); class BackstageController extends Controller { constructor(config) { super(); if (config.serverMetrics) { this.get('/prometheus', (req, res) => { res.set('Content-Type', prometheusRegister.contentType); res.end(prometheusRegister.metrics()); }); } } } module.exports = BackstageController;