Loading videos in a sequence.

vid-sequence.js

var videoIds = [1, 2, 3, 4];
// get the first video
player.catalog.getVideo(videoIds[0], function(error, video) {
  if (error) {
    return alert(error);
  }
  videoIds.shift();
  // load it into the player so it's ready when the user hits "play"
  player.catalog.load(video);

  // wait until the video ends and then load up the next video
  player.on('ended', function() {
    // figure out what the next video ID is
    var nextVideoId = videoIds.shift();
    // do nothing if all the videos are over
    if (!nextVideoId) {
      return;
    }
    // fetch the next video from the catalog
    player.catalog.getVideo(nextVideoId, function(error, video) {
      if (error) {
        return alert(error);
      }
      // load it into the player and start playback
      player.catalog.load(video);
      player.play();
    });
  });
});