[Sample Of Jan 5th] How to use HttpClient to post Json data to WebService in Windows Store apps

Sample Download: https://code.msdn.microsoft.com/How-to-use-HttpClient-to-0b09ba93

​The sample demonstrates how to use the HttpClient and JsonObject class to post JSON data to a web service. It's easy to achieve this in WinJS realm.  But there is no example shows how to do this using HttpClient in C++ language. 

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