deploy-commands.js

import { REST, Routes } from 'discord.js';
import config from './config.json' assert { type: 'json' };
const [clientId, token, guildId] = [config.bot_id, config.token, config.guild_id]
import { readdirSync } from 'node:fs';
import { join, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';
const __dirname = dirname(fileURLToPath(import.meta.url));

const commands = [];
// Grab all the command files from the commands directory you created earlier
const commandFoldersPath = join(__dirname, 'commands');
const commandFolders = readdirSync(commandFoldersPath);

// Grab the SlashCommandBuilder#toJSON() output of each command's data for deployment
for (const fileFolder of commandFolders) {
	const commandsPath = join(commandFoldersPath, fileFolder);
	const commandFiles = readdirSync(commandsPath).filter(file => file.endsWith('.js'));
	for (const file of commandFiles) {
		const filePath = join("file://", commandsPath, file);
		const command = await import(filePath);
		if ('data' in command && 'execute' in command) {
			commands.push(command.data.toJSON());
		} else {
			console.log(`[WARNING] The command at ${filePath} is missing a required "data" or "execute" property.`);
		}
	}
}

// Construct and prepare an instance of the REST module
const rest = new REST({ version: '10' }).setToken(token);

// and deploy your commands!
(async () => {
	try {
		console.log(`Started refreshing ${commands.length} application (/) commands.`);

		// The put method is used to fully refresh all commands in the guild with the current set
		const data = await rest.put(
			guildId?
			Routes.applicationGuildCommands(clientId, guildId):
			Routes.applicationCommands(clientId),
			{ body: commands },
		);

		console.log(`Successfully reloaded ${data.length} application (/) commands.`);
	} catch (error) {
		// And of course, make sure you catch and log any errors!
		console.error(error);
	}
})();