In another post

https://organicax.com/2014/08/13/creating-a-custom-service/

I walkthrough the creation of this project but if you want to skip that and just play with the sample you can download a zip of the xpo here.

https://onedrive.live.com/redir?resid=FD50488EDE1F8A3C!108&authkey=!ANnjS5lGfG4hWl4&ithint=file%2czip

This video walk through using the files in the zip.

Cheers

Lachlan