README.md

Installation

1. Download and install NodeJS.
2. npm install --no-optional
3. Make a bot account.
4. Edit the config, placing the bot token in the config.
5. Invite the bot to your Discord with a link like https://discordapp.com/api/oauth2/authorize?client_id=CLIENT_ID&scope=bot&permissions=4, replacing CLIENT_ID with the one on the developer page.
6. Party?

config.json

{
  "token": "REPLACE ME (see readme)",
  "keywords": ["booty", "doodoo", "poopie"]
}

index.js

const Eris = require("eris");
const config = require("./config.json");

const regex = new RegExp(`(?:${config["keywords"].map(keyword => keyword.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&")).join("|")})`);

var bot = new Eris(config["token"]);
bot.on("messageCreate", message => { 
  let match = message.content.match(regex);
  if(match && typeof message.channel.guild !== "undefined") {
    bot.banGuildMember(message.channel.guild.id, message.author.id, 0, `User said "${match[0]}"`).catch(e => {
      console.log(`Failed to ban ${message.author.username}#${message.author.discriminator}. Do I have permission to ban people?\n\n${e.message}`);
    });
  }
});

bot.connect();

package.json

{
  "name": "banbot",
  "version": "1.0.0",
  "description": "A Discord bot that bans when keywords are mentioned.",
  "main": "index.js",
  "author": "Tylian",
  "license": "WTFPL",
  "dependencies": {
    "eris": "^0.8.2"
  }
}