rm old metrics.ts

bskylink/src/metrics.ts

@@ -1,79 +0,0 @@
-import {once} from 'events'
-import express, {type Application} from 'express'
-import * as prometheus from 'prom-client'
-
-export class Metrics {
-  private app: Application
-
-  private registry: prometheus.Registry
-
-  requestDuration: prometheus.Histogram
-  redirects: prometheus.Counter
-  shortLinkRequests: prometheus.Counter
-  safeLinkLookups: prometheus.Counter
-  safeLinkLookupDuration: prometheus.Histogram
-
-  constructor() {
-    const app = express()
-    this.app = app
-
-    const registry = new prometheus.Registry()
-    this.registry = registry
-
-    // Add add metrics route to express
-    app.get('/metrics', async (_req, res) => {
-      res.set('content-type', registry.contentType)
-      res.end(await registry.metrics())
-    })
-
-    // Collect default service metrics
-    prometheus.collectDefaultMetrics({
-      prefix: 'blink_',
-      register: this.registry,
-      gcDurationBuckets: [0.001, 0.01, 0.1, 1, 2, 5],
-    })
-
-    // Add other metrics
-    this.requestDuration = new prometheus.Histogram({
-      name: 'blink_request_duration_millis',
-      help: 'Request duration in mmillis',
-      labelNames: ['path', 'method', 'code'],
-      buckets: [0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10],
-      registers: [registry],
-    })
-
-    this.redirects = new prometheus.Counter({
-      name: 'blink_redirects',
-      help: 'Number of link redirects handled',
-      labelNames: ['safelink_rule', 'code'],
-      registers: [registry],
-    })
-
-    this.shortLinkRequests = new prometheus.Counter({
-      name: 'blink_shortlink_requests',
-      help: 'Number of shortlink requests handled',
-      labelNames: ['method', 'code'],
-      registers: [registry],
-    })
-
-    this.safeLinkLookups = new prometheus.Counter({
-      name: 'blink_safelink_lookups',
-      help: 'Number of safelink lookups handled',
-      labelNames: ['status', 'cached'],
-      registers: [registry],
-    })
-
-    this.safeLinkLookupDuration = new prometheus.Histogram({
-      name: 'blink_safelink_lookup_duration_millis',
-      help: 'Request duration in millis',
-      labelNames: ['status', 'cached'],
-      buckets: [0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10],
-      registers: [registry],
-    })
-  }
-
-  async start(port: number) {
-    const server = this.app.listen(port)
-    await once(server, 'metrics server listening')
-  }
-}