const express = require('express');
const app = express();

app.use(express.json()); // for parsing application/json

let ipAddress = ''; // to store the received IP address

// endpoint to receive an IP address from an external source
app.post('/set-ip', (req, res) => {
  ipAddress = req.body.ip;
  console.log('IP address received:', ipAddress);
});

// endpoint for the ESP32 to fetch the IP address
app.get('/get-ip', (req, res) => {
  res.json({ ip: ipAddress });
  console.log('IP address sent to ESP32');
});

app.listen(42069, () => {
  console.log('Server is running on port 42069');
});