title: how can i post a json string along with some parameters in windows universal application c#
body: <p>post a json value along with parameters in universal  windows application</p>
  
  <p>example:</p>
  
  <p>post 
  <a href="http://sampleurl?param=1&amp;param2=1" rel="nofollow noreferrer">http://sampleurl?param=1&amp;param2=1</a>
  json body : [{"key":"value","key2":"value2"}]</p>