Eris 
A NodeJS wrapper for interfacing with Discord.
Installing
You will need NodeJS 8+. If you need voice support you will also need Python 2.7 and a C++ compiler. Refer to the Getting Started section of the docs for more details.
npm install --no-optional eris
If you need voice support, remove the --no-optional
Ping Pong Example
const Eris = require("eris");
var bot = new Eris("BOT_TOKEN");
// Replace BOT_TOKEN with your bot account's token
bot.on("ready", () => { // When the bot is ready
console.log("Ready!"); // Log "Ready!"
});
bot.on("messageCreate", (msg) => { // When a message is created
if(msg.content === "!ping") { // If the message content is "!ping"
bot.createMessage(msg.channel.id, "Pong!");
// Send a message in the same channel with "Pong!"
} else if(msg.content === "!pong") { // Otherwise, if the message is "!pong"
bot.createMessage(msg.channel.id, "Ping!");
// Respond with "Ping!"
}
});
bot.connect(); // Get the bot to connect to Discord
More examples can be found in the examples folder.
Useful Links
The website includes more detailed information on getting started, as well as documentation for the different components.
The Discord API channel (#js_eris) is the best place to get support/contact me.
The GitHub repo has the most updated code.
License
Refer to the LICENSE file.