deploy.js

const { readdirSync } = require('fs');
const { REST } = require('@discordjs/rest');
const { Routes } = require('discord-api-types/v9');
const { token, clientId } = require('./data/config.json').bot
const chalk = require('chalk')

const commands = [];
const commandFiles = readdirSync('./commands').filter(file => file.endsWith('.js'));

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

const rest = new REST({ version: '9' }).setToken(token);

(async () => {
    try {
        console.log(chalk.red('Started refreshing application (/) commands.'));

        commands.forEach((command) => {
            console.log(chalk.green(command.name + ' PUSHED'));
        })

        await rest.put(
            Routes.applicationCommands(clientId),
            { body: commands },
        );

        console.log(chalk.red('Successfully reloaded application (/) commands.'));
    } catch (error) {
        console.error(error);
    }
})();