client.js

const net = require("net");
const readline = require("readline");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

const port = process.env.PORT ?? 3000;
const host = process.env.HOST ?? "127.0.0.1";

const client = new net.Socket();

client.connect(port, host, () => {
  console.log(`Connected to server at ${host}:${port}`);
  sendMessage();
});

client.on("data", (data) => {
  console.log(`Data from Server: ${data}`);
  sendMessage();
});

client.on("close", () => {
  console.log("Connection closed");
  rl.close();
});

function sendMessage() {
  rl.question("Enter message to send: ", (message) => {
    client.write(message);
  });
}