Init

test/index.js

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+const { Client, LocalAuth } = require('whatsapp-web.js')
+const qrcode = require('qrcode-terminal')
+
+// Initialize client with session persistence
+const client = new Client({
+	authStrategy: new LocalAuth(), // Saves session so you don't need to scan QR every time
+	puppeteer   : {
+		headless: true,
+		args    : ['--no-sandbox', '--disable-setuid-sandbox']
+	}
+})
+
+// Generate QR in terminal
+client.on('qr', (qr) => {
+	console.log('\n📱 Scan this QR code with WhatsApp:')
+	qrcode.generate(qr, { small: true })
+})
+
+// When client is ready
+/*client.on('ready', () => {
+ console.log('\n✅ Client is ready!')
+ console.log('Listening for messages...')
+ console.log('Use Ctrl+C to exit\n')
+ })*/
+client.on('ready', async () => {
+	console.log('\n✅ Client is ready!')
+
+	// Auto-reply to the last person who messaged you
+	let lastContact = null
+	var currentTimeAndDateTodayAsDutchh = new Date().toLocaleString('nl-NL', { timeZone: 'Europe/Amsterdam' })
+	await sendMessage('31639266516@c.us', currentTimeAndDateTodayAsDutchh + 'Yoo toppertje 🎉!')
+
+	client.on('message', (message) => {
+		console.log(`📥 [${ message.from }] ${ message.body }`)
+		lastContact = message.from.split('@')[0] // Extract number
+		// Send after 10 seconds
+		setTimeout(async () => {
+			if (lastContact) {
+				console.log(`\nSending test to ${ lastContact }...`)
+				await sendMessage(lastContact, 'Yooo toppertje🎉!')
+			} else
+				console.log('No last contact found')
+		}, 2000)
+	})
+
+})
+// Listen for incoming messages
+client.on('message', (message) => {
+	console.log(`📥 [${ message.from }] ${ message.body || '(media message)' }`)
+
+	// Auto-reply example
+	if (message.body.toLowerCase() === 'ping') {
+		message.reply('🏓 Pong!')
+		console.log('   Replied with "Pong!"')
+	}
+})
+
+// Function to send messages
+const sendMessage = async (number, text) => {
+	try {
+		const chatId = number.includes('@c.us') ? number : `${ number }@c.us`
+		await client.sendMessage(chatId, text)
+		console.log(`✅ Sent to ${ number }: "${ text }"`)
+		return true
+	} catch (error) {
+		console.error(`❌ Error sending to ${ number }:`, error.message)
+		return false
+	}
+}
+
+// Export for external use
+module.exports = { client, sendMessage }
+
+// Initialize client
+client.initialize()
+
+// Graceful shutdown
+process.on('SIGINT', async () => {
+	console.log('\n🛑 Shutting down...')
+	await client.destroy()
+	process.exit(0)
+})