index.js

const dotenv = require('dotenv');
const fs = require('fs');
const { Client, Intents, Collection } = require('discord.js');
const { token } = require('./config.json');

const client = new Client({ intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES, Intents.FLAGS.GUILD_VOICE_STATES] });

dotenv.config();

client.commands = new Collection();
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));

for (const file of commandFiles) {
    const command = require(`./commands/${file}`);

    client.commands.set(command.data.name, command);
}

client.once('ready', () => {
    console.log('ready');
    client.user.setPresence({ activities: [{ name: '/help', type: 'LISTENING' }], status: 'online' });
});

client.on('interactionCreate', async interaction => {
    if (!interaction.isCommand()) return;

    const command = client.commands.get(interaction.commandName);

    if (!command) return;

    try {
        await command.execute(interaction);
    } catch (error) {
        console.error(error);
        return interaction.reply({ content: 'there was an error executing that command', ephemeral: true});
    }
});

client.login(token);