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examples/src/app.ts

+'use strict'
+
+import * as http from 'http'
+import * as express from 'express'
+
+import { Metrics, MetricType } from '../../dist/index'
+
+class App {
+  public app: express.Application
+  private readonly router: express.Router
+  public readonly server: http.Server
+  private readonly metrics: Metrics
+
+  constructor (port: number) {
+
+    this.app = express()
+
+    this.router = express.Router()
+
+    this.metrics = new Metrics({
+      ignore: ['/bar'],
+      disableErrorCounter: false,
+      disableRouteCounter: false,
+      disableDurationCounter: false,
+      disableDefaultMetrics: false,
+      disableClientCounter: false
+    })
+
+    this.metrics.addCustomMetric({
+      name: 'sometest',
+      help: 'Some Test Metric'
+    }, MetricType.COUNTER)
+
+    this.router.use(this.metrics.collect)
+
+    this.router.get('/favicon.ico', (req, res) => res.status(204)) // No Favicon here
+
+    this.router.get('/foo', (req:express.Request, res:express.Response) => {
+      res.status(200).send('foo')
+    })
+    this.router.get('/bar', (req:express.Request, res:express.Response) => {
+      this.metrics.customMetrics["sometest"].inc()
+      res.status(200).send('bar')
+    })
+    this.router.get('/404', (req:express.Request, res:express.Response) => {
+      res.status(404).end()
+    })
+    this.router.get('/401', (req:express.Request, res:express.Response) => {
+      res.status(401).end()
+    })
+    this.router.get('/_metrics', this.metrics.endpoint)
+
+    this.app.use(this.router)
+
+    this.server = http.createServer(this.app)
+    this.server.listen(port)
+    console.log(`metrics-example is running on Port ${port as number}`)
+  }
+}
+export default App