Simple Python to Javascript 2 way unix socket

client.py

"""Creates a python socket client that will interact with javascript."""
import socket

socket_path = '/tmp/node-python-sock'
# connect to the unix local socket with a stream type
client = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
client.connect(socket_path)
# send an initial message (as bytes)
client.send(b'python connected')
# start a loop
while True:
    # wait for a response and decode it from bytes
    msg = client.recv(2048).decode('utf-8')
    print(msg)
    if msg == 'hi':
        client.send(b'hello')
    elif msg == 'end':
        # exit the loop
        break

# close the connection
client.close()

server.js

/**
 * Creates a unix socket server and waits for a python client to interact
 */
const net = require('net');
const fs = require('fs');

const socketPath = '/tmp/node-python-sock';
// Callback for socket
const handler = (socket) => {

  // Listen for data from client
  socket.on('data', (bytes) => {

    // Decode byte string
    const msg = bytes.toString();

    console.log(msg);

    if (msg === 'python connected')
      return socket.write('hi');

    // Let python know we want it to close
    socket.write('end');
    // Exit the process
    return process.exit(0);

  });

};

// Remove an existing socket
fs.unlink(
  socketPath,
  // Create the server, give it our callback handler and listen at the path
  () => net.createServer(handler).listen(socketPath)
);

awesome

nice one

I need the exact opposite. A Javascript client running on a PC/Mac interacting with a Python server. How difficult to change what you've already written?

Great
Thanks this helped a lot