创建一个 Discord 机器人

mkdir my-bot
cd my-bot
bun init

bun add discord.js

DISCORD_TOKEN=your-bot-token
DISCORD_CLIENT_ID=your-application-id
DISCORD_GUILD_ID=your-server-id

node_modules
.env.local

import { REST, Routes, SlashCommandBuilder } from "discord.js";

const { DISCORD_TOKEN, DISCORD_CLIENT_ID, DISCORD_GUILD_ID } = process.env;
if (!DISCORD_TOKEN || !DISCORD_CLIENT_ID || !DISCORD_GUILD_ID) {
  throw new Error("在 .env.local 中设置 DISCORD_TOKEN、DISCORD_CLIENT_ID 和 DISCORD_GUILD_ID");
}

// 你想要注册的命令
const commands = [new SlashCommandBuilder().setName("ping").setDescription("回复 Pong!").toJSON()];

const rest = new REST().setToken(DISCORD_TOKEN);

// 在你的测试服务器中注册它们
await rest.put(Routes.applicationGuildCommands(DISCORD_CLIENT_ID, DISCORD_GUILD_ID), { body: commands });

console.log("已注册 /ping");

bun run deploy-commands.ts

import { Client, Events, GatewayIntentBits } from "discord.js";

const { DISCORD_TOKEN } = process.env;
if (!DISCORD_TOKEN) {
  throw new Error("在 .env.local 中设置 DISCORD_TOKEN");
}

const client = new Client({ intents: [GatewayIntentBits.Guilds] });

// 在机器人连接后立即运行一次
client.once(Events.ClientReady, readyClient => {
  console.log(`Logged in as ${readyClient.user.tag}`);
});

// 每次有人使用斜杠命令时运行
client.on(Events.InteractionCreate, async interaction => {
  if (!interaction.isChatInputCommand()) return;

  if (interaction.commandName === "ping") {
    await interaction.reply("Pong!");
  }
});

client.login(DISCORD_TOKEN);

bun run bot.ts