slashCommands.ts

import * as fs from 'fs'
import {DiscordAuth} from './discordbot/discordAuth';
import {promisify} from 'util';
import {Routes} from 'discord.js';

export async function reloadSlashCommands(auth: DiscordAuth, guild: string): Promise<boolean> {
    try {
        console.log('Started refreshing application (/) commands.');

        const asyncReaddir = promisify(fs.readdir)
        const commandFiles = (await asyncReaddir('./commands')).filter(f => f.endsWith('.js'));

        const commands = [];

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

        await auth.client.rest.put(Routes.applicationGuildCommands(auth.clientId, guild), {
            body: commands
        });

        console.log('Successfully reloaded application (/) commands.');
        return true;
    } catch (error) {
        console.error(error);
        return false;
    }
}