export spotify ids to text

readme.md

What

Get title - artist list from spotify tracks id

How

1. In Spotify, select tracks and ctrl + c

https://open.spotify.com/track/7qlglyHTqO3FtDg0WefvIE
https://open.spotify.com/track/2haoJgD4gq8AXvArFZASBG
https://open.spotify.com/track/1vygVzLAwQnGwmvG0j92dF

1. In a text editor extracts comma-separated ids 7qlglyHTqO3FtDg0WefvIE,2haoJgD4gq8AXvArFZASBG,1vygVzLAwQnGwmvG0j92dF
2. run js script
3. run getTextFromIds("7qlglyHTqO3FtDg0WefvIE,2haoJgD4gq8AXvArFZASBG,1vygVzLAwQnGwmvG0j92dF")

It will print

Human Thing - Tiken Jah Fakoly
The Answer - Apollo Brown
La Celestina - Natalia Doco

SpotifyIDsToText.js

function extractSpotify (data) {
    var tracks = data.tracks;
    var extract = tracks.map( track => ({
        artist: track.artists[0].name,
        title : track.name,
    }));
    return extract;
}
function formatSpotify (extracted) {
     var out = extracted
        .map( ex => ex.title + ' - ' + ex.artist)
        .join('\n');
//      copy(out);
     return out;
}

function callAjax(url, callback){
    var xmlhttp;
    // compatible with IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function(){
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200){
            callback(xmlhttp.responseText);
        }
    }
    xmlhttp.open("GET", url, true);
    xmlhttp.send();
}

function promiseAjax (url) {
   return new Promise(function(resolve) {
       callAjax(url, resolve);
   })
}

function loadInfo(ids) {
   var urlBase = 'https://api.spotify.com/v1/tracks/?ids=';
   var url = urlBase + ids;
   return promiseAjax(url)
    .then(JSON.parse);
}

function getTextFromIds (ids) {
    loadInfo(ids)
        .then(data => {
            var extracted = extractSpotify(data);
            var res = formatSpotify(extracted);
            console.log(res)
        })
}