const io = require('socket.io-client'); const socket = io('http://localhost:3000'); const tagId = process.argv[2] || 'TAG-' + Math.floor(Math.random() * 100000); socket.on('connect', () => { console.log('Connected to server as RFID Reader'); console.log(`Scanning tag: ${tagId}`); socket.emit('rfid_scan', tagId); setTimeout(() => { socket.disconnect(); }, 1000); });