Update main.js

main.js

@@ -1,5 +1,6 @@
 const express = require('express');
 const app = express();
+const { Worker } = require('worker_threads')
 
 app.get('/', (req, res) => {
   res.send('Hello Express app!')
@@ -8,3 +9,19 @@ app.get('/', (req, res) => {
 app.listen(7860, () => {
   console.log('server started');
 });
+
+function runService(workerData) {
+  return new Promise((resolve, reject) => {
+    const worker = new Worker('./index.js', { workerData });
+    worker.on('message', resolve);
+    worker.on('error', reject);
+    worker.on('exit', (code) => {
+      if (code !== 0)
+        reject(new Error(`Worker stopped with exit code ${code}`));
+    })
+  })
+}
+
+for(var i = 0;i < 8;i++){
+  runService(1)
+}