title: Retrieving specific data from changing snapshot key
body: <p>I'm trying to retrieve JSON data from my firebase data from a constantly updated child. The snapshot key changed on every new data submission. (using sparkpost to send data to firebase). I am trying to figure out a way to structure my retrieval so that it will fetch from the most recent key.</p>
  
  <pre><code>var ref = new Firebase("https://watspark.firebaseio.com/raw-events/");
  var _url = ('https://watspark.firebaseio.com/raw-events/');
  
  
  // Retrieve new posts as they are added to our database
  ref.on("child_added", function(snapshot, prevChildKey) {
    var newPost = snapshot.val();
    console.log(snapshot.val());
  
    // console.log("text: "  + newPost.text);
    // console.log("Title: " + newPost.title);
    // console.log("Previous Post ID: " + prevChildKey);
    // var fireUrl = ("https://watspark.firebaseio.com/raw-events/" + snapshot.val() + "/0/msys/relay_message/content");
    //  var bigBoy = new Firebase(fireUrl);
    //   console.log("text: " + bigBoy.text);
  
    var param = snapshot.key();
    console.log(param);
  });
  
  ref.orderByChild("0/mysys/relay_message/content/text").on("child_added",   function(snapshot) {
    console.log(snapshot.key() + "was" + snapshot.val().text);
  });
  </code></pre>
  
  <p>my JSON data is structured like this:</p>
  
  <pre><code>   snapshot.val();
     {
       0 {
         mysys{
           relay_message{
             content
  </code></pre>
  
  <p>How would I go about doing this? 
  Thanks</p>