bot.js

const tmi = require('tmi.js');

// Define configuration options
const opts = {
	identity: {
		username: "BOT_USERNAME",
		password: "OAUTH_TOKEN"
	},
	channels: [
		"CHANNEL_NAME"
	]
};
// Create a client with our options
const client = new tmi.client(opts);

// Register our event handlers (defined below)
client.on('message', onMessageHandler);
client.on('connected', onConnectedHandler);

// Connect to Twitch:
client.connect();

// Called every time a message comes in
function onMessageHandler(target, context, msg, self) {
	if (self) {
		return;
	} // Ignore messages from the bot

	// Remove whitespace from chat message
	const commandName = msg.trim();

	// If the command is known, let's execute it
	if (commandName === '!dice') {
		const num = rollDice();
		client.say(target, `You rolled a ${num}`);
		console.log(`* Executed ${commandName} command`);
	} else {
		console.log(`* Unknown command ${commandName}`);
	}

	// GAMEGG
	if (commandName === '!gamegg') {
		const num = rollDice();
		client.say(target, `https://gamegg.ir`);
		console.log(`* Executed ${commandName} command`);
	} else {
		console.log(`* Unknown command ${commandName}`);
	}

	// Discord
	if (commandName === '!discord') {
		const num = rollDice();
		client.say(target, `https://discord.gg/2JjvhAk`);
		console.log(`* Executed ${commandName} command`);
	} else {
		console.log(`* Unknown command ${commandName}`);
	}
}
// Function called when the "dice" command is issued
function rollDice() {
	const sides = 6;
	return Math.floor(Math.random() * sides) + 1;
}
// Called every time the bot connects to Twitch chat
function onConnectedHandler(addr, port) {
	console.log(`* Connected to ${addr}:${port}`);
}