deploy-commands.js

import { REST, Routes } from "discord.js";
import fs from "node:fs";
import path from "node:path";
import dotenv from "dotenv";
import { fileURLToPath } from 'url';

// ES modules don't have __dirname, so we need to construct it
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

dotenv.config();
const commands = [];

// Grab all the command files from the commands directory you created earlier
const commandsPath = path.join(__dirname, "commands");
const commandFiles = fs
  .readdirSync(commandsPath)
  .filter((file) => file.endsWith(".js"));

// Grab the SlashCommandBuilder#toJSON() output of each command's data for deployment
for (const file of commandFiles) {
  const filePath = `./commands/${file}`;
  const command = await import(filePath);
  commands.push(command.default.data.toJSON());
}

// Construct and prepare an instance of the REST module
const rest = new REST().setToken(process.env.TOKEN);

// and deploy your commands!
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(
    Routes.applicationCommands(process.env.CLIENT_ID),
    {
      body: commands,
    }
  );

  console.log(
    `Successfully reloaded ${data.length} application (/) commands.`
  );
} catch (error) {
  console.error(error);
}