oop

src/util/promHandler.ts

@@ -0,0 +1,53 @@
+const express = require("express");
+const promClient = require("prom-client");
+
+const { client } = require("./wouldYou");
+
+class prometheusClient {
+  private registry;
+  private counter;
+  constructor() {
+    this.registry = new promClient.Registry();
+    this.counter = new promClient.Counter({
+      name: "example_counter",
+      help: "A simple example counter metric",
+      registers: [this.registry],
+    });
+
+    const app = express();
+
+    app.use(express.json());
+
+    // Expose Prometheus metrics endpoint
+    app.get("/metrics", async (req, res) => {
+      res.set("Content-Type", this.registry.contentType());
+      res.end(await this.registry.metrics());
+    });
+  }
+
+  increment(counter: string) {
+    switch (this.counter) {
+      case "wouldYou":
+        this.counter = wouldYou;
+        break;
+      case "neverHaveIEver":
+        this.counter = neverHaveIEver;
+        break;
+      case "mostLikely":
+        this.counter = mostLikely;
+        break;
+      case "truthOrDare":
+        this.counter = truthOrDare;
+        break;
+      default:
+        this.counter = wouldYou;
+    }
+    this.counter.inc();
+  }
+
+  getMetrics() {
+    return this.registry.metrics();
+  }
+}
+
+module.exports = prometheusClient;