background.js

var memory;
chrome.omnibox.onInputChanged.addListener(function(text, suggest){   
  var baseUrl = "http://ws.spotify.com/search/1/artist.json?q="+text;
  var finalResult = [];
  var store = {};
      
  $.ajax({
    url : baseUrl,
    dataType : "json",
    type: 'GET',
    async: true,
    success: function(result){
           // console.log(result);
      var artists = result['artists'];
      for (var i = 0; i < artists.length && i < 5; i += 1){  
        var artist = artists[i];
        if(artist.href){
          var href_split = artist.href.split(":"), 
            href = "http://play.spotify.com/artist/" + href_split[2],
            obj = {},
            artist = artist.name.replace("&", "and");
            obj.artist = artist;
            obj.url = href;
            obj.description = "<match>" +
              artist +
              "</match>" +
              "<dim> - </dim>" + 
              " <url>" +
              href + 
              "</url>";

          finalResult.push({
            content : obj.artist, 
            description : obj.description
          });

          store[obj.artist.replace(/ /g, "-")] = obj;


          // temp store results in memory
        }
     }
     memory = store;
     suggest(finalResult);
    }      
  });          
      
});

// This event is fired with the user accepts the input in the omnibox.
chrome.omnibox.onInputEntered.addListener(function(text) {
    var obj = memory[text.replace(/ /g, "-")];
      
      $.ajax({url:'http://ws.spotify.com/search/1/track?q='+obj.artist,
        dataType:'json',
        type:'GET',
        async:true,
        success:function(result){
          
          var finalResult = [],
          tracks = result.tracks;
          tracks.sort(function(a, b){
              if (a.popularity > b.popularity){
                return -1;
              } else {
                return 1;
              }
             return 1; 
            
            });
         
          
          $.each(tracks, function(i, k){
            var popularity = k.popularity;
            var href = k.href.split(':');
            
            finalResult.push({popularity:popularity, url:href[2]});

          });

          var first_url = 'https://play.spotify.com/track/'+finalResult[0].url;
          console.log(first_url);
          // chrome.omnibox.onInputEntered.addListener(function(text, suggest){

          //   suggest()
          // });
        
          chrome.tabs.update({ url: first_url });
        }});
    //loop through results find selected then push to local storage
});