c# - Complete an HTTP request while app closing -

c# - Complete an HTTP request while app closing -

currently working on kind of analytics sdk , measure session lengths. in wp when send http request within phoneapplicationservice.closing event handler, never completed await asynchronuous operation.

i checked google analytics implementation @ https://www.codeplex.com/ bumped comment // there no way deferral in wp not happen until after homecoming app

so create request complete? or perfect way measure session lengths accurately , in realtime.

thanks

c# .net windows-phone-8 application-lifecycle