botmon/botmon.js

const express = require('express');
const venom = require('venom-bot');
const app = express();

let botClient;

app.use(express.json({ limit: '10mb' }));

const { session_name, browser_args } = require('./config.js');
const { send_message, send_image, get_all_chats, base64ToFile } = require('./utils.js');

venom
.create(
    //session
    session_name, //Pass the name of the client you want to start the bot
    //catchQR
    (base64Qrimg, asciiQR, attempts, urlCode) => {
        console.log('Number of attempts to read the qrcode: ', attempts);
        console.log('Terminal qrcode: ', asciiQR);
        console.log('base64 image string qrcode: ', base64Qrimg);
        console.log('urlCode (data-ref): ', urlCode);
    },
    // statusFind
    (statusSession, session) => {
        console.log('Status Session: ', statusSession); //return isLogged || notLogged || browserClose || qrReadSuccess || qrReadFail || autocloseCalled || desconnectedMobile || deleteToken || chatsAvailable || deviceNotConnected || serverWssNotConnected || noOpenBrowser || initBrowser || openBrowser || connectBrowserWs || initWhatsapp || erroPageWhatsapp || successPageWhatsapp || waitForLogin || waitChat || successChat
        //Create session wss return "serverClose" case server for close
        console.log('Session name: ', session);
    },
    // options
    {
        browserPathExecutable: '/usr/bin/google-chrome-stable', // browser executable path
        folderNameToken: 'tokens', //folder name when saving tokens
        mkdirFolderToken: '', //folder directory tokens, just inside the venom folder, example:  { mkdirFolderToken: '/node_modules', } //will save the tokens folder in the node_modules directory
        headless: 'new', // you should no longer use boolean false or true, now use false, true or 'new' learn more https://developer.chrome.com/articles/new-headless/
        devtools: false, // Open devtools by default
        debug: false, // Opens a debug session
        logQR: true, // Logs QR automatically in terminal
        browserWS: '', // If u want to use browserWSEndpoint
        browserArgs: ['--no-sandbox', browser_args], // Original parameters  ---Parameters to be added into the chrome browser instance
        addBrowserArgs: [], // Add broserArgs without overwriting the project's original
        puppeteerOptions: {}, // Will be passed to puppeteer.launch
        disableSpins: true, // Will disable Spinnies animation, useful for containers (docker) for a better log
        disableWelcome: true, // Will disable the welcoming message which appears in the beginning
        updatesLog: true, // Logs info updates automatically in terminal
        autoClose: 60000, // Automatically closes the venom-bot only when scanning the QR code (default 60 seconds, if you want to turn it off, assign 0 or false)
        createPathFileToken: false, // creates a folder when inserting an object in the client's browser, to work it is necessary to pass the parameters in the function create browserSessionToken
        addProxy: [''], // Add proxy server exemple : [e1.p.webshare.io:01, e1.p.webshare.io:01]
        userProxy: '', // Proxy login username
        userPass: '' // Proxy password
    },

    // BrowserInstance
    (browser, waPage) => {
        console.log('Browser PID:', browser.process().pid);
        waPage.screenshot({ path: 'screenshot.png' });
    }
)
.then((client) => {
    botClient = client
    start(client);
})
.catch((erro) => {
    console.log(erro);
});

function start(client) {
    client.onMessage((message) => {
        if (message.body === 'Hi' && message.isGroupMsg === false) {
        client
            .sendText(message.from, 'Welcome!')
            .then((result) => {
            console.log('Result: ', result); //return object success
            })
            .catch((erro) => {
            console.error('Error when sending: ', erro); //return object error
            });
        }
    });
}

app.get('/', (req, res) => {
    res.send('Hello World!');
});

app.get('/get-all-chats', (req, res) => {    
    var result = get_all_chats(botClient);

    console.log('================ /botmon/get-all-chats');

    result.then(function(data) {
        if (data.code === 200) {
            return res.status(200).json({status: 'success', result: data.result});
        } else {
            return res.status(500).json({status: 'error', result: data.result});
        }
    });
});

app.post('/send-message', (req, res) => {
    const { to, message } = req.body;

    console.log('================ /botmon/send-message');

    if (!botClient) {
        return res.status(500).json({ error: 'Bot is not initialized' });
    }

    console.log('to', to);
    console.log('message', message);

    var result = send_message(botClient, to, message);
    
    result.then(function(data) {
        if (data.code === 200) {
            return res.status(200).json({status: 'success', result: data.result});
        } else {
            return res.status(500).json({status: 'error', result: data.result});
        }
    });
});

app.post('/send-image', (req, res) => {
    const { to, name, caption, image_data } = req.body;

    console.log('================ /botmon/send-image');

    if (!botClient) {
        return res.status(500).json({ error: 'Bot is not initialized' });
    }

    const now = new Date();
    const formattedDate = `${now.getFullYear()}${String(now.getMonth() + 1).padStart(2, '0')}${String(now.getDate()).padStart(2, '0')}`;
    const formattedTime = `${String(now.getHours()).padStart(2, '0')}${String(now.getMinutes()).padStart(2, '0')}${String(now.getSeconds()).padStart(2, '0')}`;
    const path = 'assets/images/' + name + '-' + formattedDate + formattedTime + '.png';

    console.log('to', to);
    console.log('name', name);
    console.log('caption', caption);
    
    const base64_image = "data:image/png;base64," + image_data
    if (base64ToFile(base64_image, path) === false) {
        return res.status(500).json({ error: 'Error writing image to file'});
    } 

    var result = send_image(botClient, to, base64_image, name, caption);
    
    result.then(function(data) {
        if (data.code === 200) {
            return res.status(200).json({status: 'success', result: data.result});
        } else {
            return res.status(500).json({status: 'error', result: data.result});
        }
    })
});

// Start the Express server
app.listen(port, () => {
    console.log(`Server running at http://localhost:${port}/`);
});