title: get json objects inside another json object (not array)
body: <p>i got this structure:</p>
  
  <pre><code>{
  "parent": {
        "child-parent-1": {
              "att1": null,
              "att2": null,
        },
        "child-parent-2": {
              "att1": null,
              "att2": null,
        }
   }}
  </code></pre>
  
  <p>What i need to get, is the "child-parent-1" and "child-parent-2" names without knowing their names... since they are dynamically generated, like a hash code (askdl1km2lkaskjdnzkj2138). </p>
  
  <p>Tried iterating but i couldn't make it work. I always get the child attributes (key/value pair). Or the entire parent object with all the objects in it. Need to get the parent names i've mentioned above.</p>
  
  <p>How can I do this?</p>
  
  <p>Thanks in advance.</p>