socket.js

socket.js

const net = require('net');
const server = net.createServer(c => {
  c.setEncoding('ascii');
  console.log('client connected');
  c.on('end', () => {
    console.log('client disconnected');
  });
  c.on('data', data => {
    //console.log(Buffer.from(data, 'ascii'));
    console.log(data);
    if (data.includes("\r\n\r\n")) {
      console.log('hogehoge');
      const resp = 
      "HTTP/1.1 200 OK\r\n" +
      "Content-Type: text/html; charset=utf-8\r\n" +
      "Content-Length: 4\r\n" +
      "Date: Thu, 24 May 2018 04:35:37 GMT\r\n" +
      "Connection: keep-alive\r\n" +
      "\r\n" +
      "pong";
      c.write(resp);
    }
  });
});
server.on('error', (err) => {
  throw err;
});
server.listen(3000, () => {
  console.log('server bound');
});