updating consumer

consumer/src/Metrics.ts

@@ -0,0 +1,48 @@
+
+import { Router } from 'express';
+import { RedisStreamService } from './shared/services/RedisStreamService';
+import { requireEnv } from './shared/utils/requireEnv';
+
+const stream_name = requireEnv('STREAM_NAME');
+
+export class MetricsManager {
+
+    private static processTime = new Map<string, number[]>();
+
+    static onProcess(id: string, time: number) {
+        const target = this.processTime.get(id);
+        if (!target) {
+            this.processTime.set(id, [time]);
+        } else {
+            target.push(time);
+            if (target.length > 1000) target.splice(0, target.length - 1000);
+        }
+    }
+
+    static get() {
+        return Array.from(this.processTime.entries());
+    }
+
+}
+
+export const metricsRouter = Router();
+
+metricsRouter.get('/queue', async (req, res) => {
+    try {
+        const size = await RedisStreamService.getQueueInfo(stream_name);
+        res.json({ size });
+    } catch (ex) {
+        console.error(ex);
+        res.status(500).json({ error: ex.message });
+    }
+})
+
+metricsRouter.get('/durations', async (req, res) => {
+    try {
+        const durations = MetricsManager.get();
+        res.json({ durations });
+    } catch (ex) {
+        console.error(ex);
+        res.status(500).json({ error: ex.message });
+    }
+})