How to parse the result in Flex after calling a SOE?

Question

I created a rest SOE using VS2010 C#, and then deployed it on server machine. How to call the Rest SOE in Flex Client? Any example or suggestion? Thanks in advance!

XintaoLiu · Answer

Thank you all for your replies! I have solved it, but just come back to look the posts.

m_d · Answer

Xinato,

Here's a FlexViewer widget I wrote; it calls an elevation data SOE through REST and then handles the resulting JSON.
http://www.arcgis.com/home/item.html?id=b9d247c297f144459854751740f59f68

The SOE URL is here:http://sampleserver6.arcgisonline.com/arcgis/rest/services/Elevation/WorldElevations/MapServer/exts/ElevationsSOE_NET/ElevationLayers/0/GetElevations

I use a Flex HTTPService object to make the call. I do it this way because I wrote the code a while ago. You might also use a BaseTask to do the same thing.
Here's the MXML declaration:<s:HTTPService showBusyCursor="true" method="POST" id="websvcElevations" url="{_configXML.elevationSOEURL}" resultFormat="text"/>

And here's a bit of the code that makes the call and handles the response:var sGeoms:String = JSONUtil.encode( [ event.graphic.geometry ] );
var oParams:Object = {
 "f"    : "json",
 "geometries" : sGeoms
}
     
// Send geometries off to SOE to get elevations
var atToken:AsyncToken = websvcElevations.send( oParams );
atToken.addResponder( new AsyncResponder(

//--- Handle results from elevation profile SOE ---//
 function( event:ResultEvent, token:Object ):void {
  try {
   var oResult:Object = JSONUtil.decode( event.result.toString() );
   if ( oResult.hasOwnProperty( "error" ) )
    showError( "The server returned an error:
" + oResult.error.message );
   else { ... }

I hope that helps.

DasaPaddock · Answer

You can also use the JSONTask if you don't want to create your own task:
http://resources.arcgis.com/en/help/flex-api/apiref/com/esri/ags/tasks/JSONTask.html