title: JSON response redirect
body: <p>An <code>Employee</code> has many <code>PartyInvites</code> and a <code>Party</code> has many <code>PartyInvites</code>. I would like a controller method to accept a party invite. If controller <code>PartyInvites</code> has this (update) method that assigns an <code>Employee</code> to a <code>Party</code>, which controller is responsible for returning the Party Object?</p>
  
  <p>Maybe I misinterpreted JSON REST API's but if you are working with a specific resource (in this case PartyInvite) then could we return something that the client isn't expecting (a Party). Maybe I'm overthinking this all. But is this what a redirect should be used for to redirect the <code>PartyInvite</code> controller to a <code>Party</code> controller when the PartyInvite has been accepted?</p>