songs.js

var http	= require('https'),
	args	= process.argv.splice(process.execArgv.length + 2),
	artists	= {};

function search(query){
	http.get(
		'https://api.spotify.com/v1/search?q='
		+ encodeURIComponent(query)
		+ '&type=artist'
	,(r0)=>{//request(0)
		var r1 = '';//response(1)
		r0.on('data',(d)=>{r1+=d;});
		r0.on('end',()=>{
			var s = JSON.parse(r1).artists.items;
			for(var i of s)
				((a)=>{
					if(!artists[a.id]){
						artists[a.id] = a;
						http.get(
							`https://api.spotify.com/v1/artists/${a.id}/albums`
						,(r2)=>{//request(2)
							var r3 = '';//response(3)
							r2.on('data',(d)=>{r3+=d;});
							r2.on('end',()=>{
								artists[a.id].albums = JSON.parse(r3).items;
								var as = [];
								for(var a1 of artists[a.id].albums)
									as.push(a1.id);
								http.get(
									'https://api.spotify.com/v1/albums?ids='
									+as.join()
								,(r4)=>{//request(4)
									var r5 = '';//response(5)
									r4.on('data',(d)=>{r5+=d;});
									r4.on('end',()=>{
										var as1 = JSON.parse(r5).albums;
										delete artists[a.id].albums;
										artists[a.id].albums = as1;
										printArtist(artists[a.id]);
									});
								});
							});
						});
					}
				})(i);
		})
	}).end();
}

function printArtist(o){
	console.log(o.name);
	for(var i of o.albums){
		console.log('\t'+i.name);
		for(var j of i.tracks.items)
			console.log('\t\t'+j.name);
	}
}
search(args.length>0?args.join(" "):"Kero Kero Bonito");