I downloaded the source and tried to run the sample solution. First I executed CreateSampleData to generate jsons in mongodb. So it worked. But when i run the SampleService, I can not see the collections.
<service xmlns="http://www.w3.org/2007/app" xmlns:atom="http://www.w3.org/2005/Atom" xml:base="http://localhost:50336/MongoDataService.svc/">
<workspace>
<atom:title>Default</atom:title>
</workspace>
</service>