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## Table of contents
- [About ](#about )
- [Installation ](#installation )
- [Audio engines ](#audio-engines )
- [Optional packages ](#optional-packages )
- [Example Usage ](#example-usage )
- [Links ](#links )
- [Extensions ](#extensions )
- [Contributing ](#contributing )
- [Help ](#help )
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## About
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discord.js is a powerful [Node.js ](https://nodejs.org ) module that allows you to easily interact with the
[Discord API ](https://discordapp.com/developers/docs/intro ).
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- Object-oriented
- Predictable abstractions
- Performant
- 100% coverage of the Discord API
## Installation
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**Node.js 10.2.0 or newer is required.**
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Ignore any warnings about unmet peer dependencies, as they're all optional.
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Without voice support: `npm install discordjs/discord.js`
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With voice support ([@discordjs/opus](https://www.npmjs.com/package/@discordjs/opus)): `npm install discordjs/discord.js @discordjs/opus`
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With voice support ([opusscript](https://www.npmjs.com/package/opusscript)): `npm install discordjs/discord.js opusscript`
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### Audio engines
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The preferred audio engine is @discordjs/opus , as it performs significantly better than opusscript. When both are available, discord.js will automatically choose @discordjs/opus .
Using opusscript is only recommended for development environments where @discordjs/opus is tough to get working.
For production bots, using @discordjs/opus should be considered a necessity, especially if they're going to be running on multiple servers.
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### Optional packages
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- [zlib-sync ](https://www.npmjs.com/package/zlib-sync ) for faster WebSocket data inflation (`npm install zlib-sync`)
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- [erlpack ](https://github.com/discordapp/erlpack ) for significantly faster WebSocket data (de)serialisation (`npm install discordapp/erlpack`)
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- One of the following packages can be installed for faster voice packet encryption and decryption:
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- [sodium ](https://www.npmjs.com/package/sodium ) (`npm install sodium`)
- [libsodium.js ](https://www.npmjs.com/package/libsodium-wrappers ) (`npm install libsodium-wrappers`)
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- [bufferutil ](https://www.npmjs.com/package/bufferutil ) for a much faster WebSocket connection (`npm install bufferutil`)
- [utf-8-validate ](https://www.npmjs.com/package/utf-8-validate ) in combination with `bufferutil` for much faster WebSocket processing (`npm install utf-8-validate`)
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## Example usage
```js
const Discord = require('discord.js');
const client = new Discord.Client();
client.on('ready', () => {
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console.log(`Logged in as ${client.user.tag}!`);
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});
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client.on('message', msg => {
if (msg.content === 'ping') {
msg.reply('pong');
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}
});
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client.login('token');
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```
## Links
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* [Website ](https://discord.js.org/ ) ([source](https://github.com/discordjs/website))
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* [Documentation ](https://discord.js.org/#/docs/main/master/general/welcome )
* [Guide ](https://discordjs.guide/ ) ([source](https://github.com/discordjs/guide)) - this is still for stable
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See also the [Update Guide ](https://discordjs.guide/additional-info/changes-in-v12.html ), including updated and removed items in the library.
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* [Discord.js Discord server ](https://discord.gg/bRCvFy9 )
* [Discord API Discord server ](https://discord.gg/discord-api )
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* [GitHub ](https://github.com/discordjs/discord.js )
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* [NPM ](https://www.npmjs.com/package/discord.js )
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* [Related libraries ](https://discordapi.com/unofficial/libs.html )
### Extensions
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* [RPC ](https://www.npmjs.com/package/discord-rpc ) ([source](https://github.com/discordjs/RPC))
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## Contributing
Before creating an issue, please ensure that it hasn't already been reported/suggested, and double-check the
[documentation ](https://discord.js.org/#/docs ).
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See [the contribution guide ](https://github.com/discordjs/discord.js/blob/master/.github/CONTRIBUTING.md ) if you'd like to submit a PR.
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## Help
If you don't understand something in the documentation, you are experiencing problems, or you just need a gentle
nudge in the right direction, please don't hesitate to join our official [Discord.js Server ](https://discord.gg/bRCvFy9 ).