asp.net mvc - How to implement "no wait" controller call for an API? -

i have set of mvc3 controller methods call javascript clients not require returning data. it's purely 1 way push of tiny data-set further processing. each controller call can take anywhere 100ms 1000ms queue transaction , no data/status returned client.

i want api call return client right away while processing happens in background.

any pointers appreciated.

public actionresult asyncaction() {     var mythread = new thread(threadfunction);     mythread.start();      return view("asyncview"); }  void threadfunction() {     .     .     //code api call etc...     .     . }