noctbot/commands/rcg.js

const request = require("request-promise-native");

const rcgRe = /<input id="rcg_image".+value="([^"]+)".*\/>/i;

const documentation = {
    "random comic": {
        auth: false,
        description: "Generates a comic just for you!"
    }
};

async function randomComic(msg) {
    let result = await request("http://explosm.net/rcg/view/");
    
    let regexResult = rcgRe.exec(result);

    msg.channel.send(`${msg.author.toString()} I find this very funny:`, {
        files: [ regexResult[1].trim() ]
    });
}

const commands = [{
    pattern: "random comic",
    action: msg => {
        randomComic(msg);
    }
}];

module.exports = {
    commands: commands,
    documentation: documentation
};