Whats-app bot which tags(mentions) all the participants in a group when '@team' or '@everyone' is sent.

Installing the library from npm requires first installing node.js 12 or higher, followed by installing library from the npm package.

Installing whatsapp-web.js:

$ npm install whatsapp-web.js

or

$ yarn add whatsapp-web.js

Installing qr-code-terminal:

$ npm install qr-code-terminal

or

$ yarn add qr-code-terminal

Create a file called app.js in the project and paste this code into it.

const qrcode = require("qrcode-terminal");
const { Client } = require("whatsapp-web.js");

const client = new Client();

client.initialize();

client.on("qr", (qr) => {
  qrcode.generate(qr, { small: true });
});

client.on("ready", () => {
  console.log("Client is ready!");
});

Then, on the terminal or command prompt, type this command.

$ node app

or

$ node app.js

When the command is executed, a QR code appears, which we will scan with the Whatsapp account we used to create the bot.

Once, installation is done, go to the group chat and send '@team' or '@everyone'.

References: https://github.com/jagadyudha/yugioh-whatsapp-bot, https://wwebjs.dev/guide/

Credits: https://github.com/jagadyudha/yugioh-whatsapp-bot