Socket Client Server with Heart Beat

client.js

const net = require("net");

const client = net.createConnection({ port: 8000 }, () => {
  console.log("Connected to server");
});

client.on("data", (data) => {
  console.log(`Received: ${data.toString()}`);
});

client.on("end", () => {
  console.log("Disconnected from server");
});

package.json

{
  "name": "refetch-interval",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "dependencies": {},
  "scripts": {
    "start": "node index.js"
  },
  "devDependencies": {
    "@types/node": "^17.0.21"
  }
}

server.js

const net = require("net");

const server = net.createServer((socket) => {
  console.log("Client connected");

  // Send a message every 5 seconds
  setInterval(() => {
    socket.write("Heartbeat");
  }, 5000);

  socket.on("end", () => {
    console.log("Client disconnected");
  });
});

server.listen(8000, () => {
  console.log("Server listening on port 8000");
});