title: Synchronize POSTs to an API in Angular
body: <p>I'm trying to synchronize my POSTs to an endpoint in Angular. I did see some examples of doing a synchronized GET but had trouble understanding the examples well enough to apply them to POSTs.</p>
  
  <p>The POSTs are pretty simple, at least from my perspective as the front-end developer. I send an object with an parent group ID and a sub group ID to a /parentgroups endpoint. On the backend, however, async calls cause the data to get overwritten.</p>
  
  <p>Apologies for lack of an example, but I am pretty far from having one that's close to working how I need. My code is still async and a loop over calls to $http.post().</p>