title: Get parameter from a given URL (not the calling) in Logic App
body: <p>I have an URI as a string which I get out of a Json in my Logic App. 
  How can I access any of the query items of the uri?</p>
  
  <p>Inside the For Each which loops through the uri string list, i tried the following expression to get the query parameter <code>filename</code>, but it did not work:</p>
  
  <p><code>items('For_each_2')['queries']['filename']</code></p>
  
  <p>This returns 'The template language expression 'items('For_each_2')['queries']['filename']' cannot be evaluated because property 'queries' cannot be selected'.</p>