Discord.js – Leave Voice Channel

Discord.js is a powerful library for building Discord bots using JavaScript. In this tutorial, we will learn how to make your bot leave a voice channel using Discord.js.

Prerequisites

To follow this tutorial, you need to have the following:

• Basic knowledge of JavaScript
• A Discord bot created and added to your server
• Node.js installed

Steps

1. Import the Client and VoiceChannel classes from the discord.js library.

const { Client, VoiceChannel } = require('discord.js');

2. Create a new Client object and connect to the API using your bot token.

const client = new Client();
client.login('YOUR_BOT_TOKEN');

3. Add an event listener to the voiceStateUpdate event, which is triggered when a user joins or leaves a voice channel. In this event, check if your bot is currently in a voice channel and if it is, check if it is the only user in that channel. If it is, leave the channel using the VoiceChannel.leave() method.

client.on('voiceStateUpdate', (oldState, newState) => {
  const botId = client.user.id;
  const oldChannel = oldState.channel;
  const newChannel = newState.channel;

  if (oldChannel && oldChannel.members.has(botId)) {
    if (oldChannel.members.size === 1) {
      oldChannel.leave();
    }
  }
});

4. Run your code and test it by joining a voice channel with your bot and then leaving the channel.

Conclusion

In this tutorial, we learned how to make your Discord bot leave a voice channel using Discord.js. We used the voiceStateUpdate event to detect when a user leaves a voice channel, and then used the VoiceChannel.leave() method to make our bot leave the channel if it is the only user in the channel.

This feature is particularly useful if you want to save resources and prevent your bot from staying in empty voice channels for extended periods of time.