how to extract data from spotify npm package? I keep getting undefine - node.js

Question

===================This is my code below=========================
function spotifyThisSong() {
var spotify = new Spotify({
id: 'myid',
secret: 'mysecret'
});
var songName = process.argv[3];
if(!songName){
songName = "What's my age again";
}
var params = songName;
spotify.search({ type: 'track', query: params }, function(err, data) {
if ( err ) {
console.log('Error occurred: ' + err);
return; //from spotify npm docs
}
else{
console.log(data);
};
});
}
===================END OF CODE=========================
keeps giving me undefine. I need to extract the song name, year, album and its url. Thanks in advance.

Answer 1

//So this is what I found. This actually involves a few things.
//FIRST, capture user-input,
//SECOND, npm install spotify, and use the template as suggested in the DOCS.
//THIRD, parse through the JSON correctly as done below.
//HOPE this helps someone. (dont forget your keys from spotify)
var songName = process.argv[3]; //capture userInput and query it below
params = songName;
spotify.search({ type: 'track', query: params }, function(err, data) {
if ( err ) {
console.log('Error occurred: ' + err);
return;
}
else{
output = space + "================= DATA HERE ==================" +
space + "Song Name: " + "'" +songName.toUpperCase()+ "'" +
space + "Album Name: " + data.tracks.items[0].album.name +
space + "Artist Name: " + data.tracks.items[0].album.artists[0].name +
space + "URL: " + data.tracks.items[0].album.external_urls.spotify + "\n\n\n";
console.log(output);
};
});