Youtube Video Checker Bot

readme.md

Instructions:

• requires npm install rss-parser
• youtube channel id is prefilled
• variable n in modules.js is the number of messages to check to tell if the video has been posted already,
• guildname and channel name are Not prefilled

index.js

const Discord = require('discord.js');
...
const rss = require('./module.js');

// Check for new youtube videos from a channel
client.setInterval(() => {
    let guild = client.guilds.find(g => g.id === <guild_id>); //Or, let guild = client.guilds.find(g => g.name === <guild_name>);
    let channel = guild.channels.find(ch => ch.name === <channel_name>);
    
    rss.updateFeed(channel);
}, 180000);

...

client.login(token);

module.js

const { RichEmbed } = require('discord.js');
const Parser = require('rss-parser');

let n = 3;

module.exports = {
	updateFeed(channel) {
		let rssParser = new Parser();
		rssParser.parseURL('https://www.youtube.com/feeds/videos.xml?channel_id=UCVyRiMvfUNMA1UPlDPzG5Ow')
			.then(feed => {
	  		let last = feed.items[0];

  		  const embed = new RichEmbed()
					  	.setTitle(last.title)
					    .setAuthor(last.author)
					    .setURL(last.link)
					    .setImage(`https://img.youtube.com/vi/${last.id.replace('yt:video:', '')}/0.jpg`)
					    .setColor(0x00ad7d)
					    .setTimestamp(new Date(last.isoDate));
				
			channel.fetchMessages({limit: n})
				.then(msg => {				
					var msgArray = msg.array();
					var id = '';

					for (var i = 0; i < n; i++) {
						if(msgArray[i].embeds[0]) {
							id = msgArray[i].embeds[0].url.replace('https://www.youtube.com/watch?v=', '');
						}
					}

					if(id !== last.id.replace('yt:video:', '')) {
						channel.send(embed);
					}
				})
				.catch(console.error)
			})
	}
}