xiao/commands/random-img/dog.js

const Command = require('../../structures/Command');
const snekfetch = require('snekfetch');

module.exports = class DogCommand extends Command {
    constructor(client) {
        super(client, {
            name: 'dog',
            group: 'random-img',
            memberName: 'dog',
            description: 'Responds with a random dog image.'
        });
    }

    async run(msg) {
        const { body } = await snekfetch
            .get('https://random.dog/woof.json');
        return msg.say(body.url);
    }
};