Fetch N pages of active users from Twitch.tv

twitch-active-streams.js

const https = require('https');

// This being a dirty prototype, I'm not concerned about checking for min/max values for this...
const maxPages = process.argv[2] || 3;

function getStreams(pages, offset, data, cb){
  // Offset could be too far. First response would include total streams (res._total). It also has links to next page...
	const req = https.get({ hostname: 'api.twitch.tv', path: '/kraken/streams?stream_type=live&offset=' + offset }, function(res){
		var body = '';

		res.on('data', function(data) {
			body += data;
		});

		res.on('end', function(){
			const json = JSON.parse(body);
			const activeStreams = json.streams.map(function(stream){
				return {
					channel: stream.channel.display_name,
					channelId: stream.channel._id,
					channelUrl: stream.channel.url
				};
			});

			data = data.concat(activeStreams);

			if (pages > 1) {
				return getStreams(pages - 1, offset + 25, data, cb);
			} else {
				cb(null, data);
			}
		});
	});

	req.on('error', function (error){
		cb(error);
	});

	req.end();
}

getStreams(maxPages, 0, [], function(err, data){
	if (err) {
		console.log('=(', err);
	}

	console.log(data);
});