Get Network attributes in Rest service from a flex query

[carinestolz]

Dear all,

I would like to get some Na Server Route details in my Flex website. Is there a function in the Flex api that can helps me in retrieving the details of my Network Analyst Layer, in my REST Service ?

For example, I would like to get the Network Attributes of usage type : esriNAUTCost, using a query like getDetails in the api (see image).

Many thanks for your help,

Best regards,

Carine

[AndyGup]

@Carine, if you haven't already be sure to check out the samples in the online help, for example: http://help.arcgis.com/en/webapi/flex/samples/index.html#/Routing_around_barriers/01nq0000004m000000...

And, here is the link to the RouteParameters class documentation: http://help.arcgis.com/en/webapi/flex/apiref/com/esri/ags/tasks/supportClasses/RouteParameters.html

-Andy

Esri Developer Network (EDN)

[carinestolz]

Many thanks Andy for your reply but this is not exactly what I was looking for.

I am looking for a function that can help me in retreiving from my Flex application, some network attributes in the REST Api.

I would like to find a function like:

var networkLayer= new Layer("my_url.../NaServer")

//make a request on the rest api to get all the details of the NAServer Layer
var details = networkLayer.getDetails() 

// in the details, get the network_attributes : I can then get the several cost existing in my Network
var costs=details.network_attributes

Does something like that exists ?

Thanks for your help 🙂

Carine

[RobertScheitlin__GISP]

Carine,

   Sure you can parse the HTML response yourself in flex. As the values you are after are displayed in the REST endpoint then you can get same in Flex.

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx"
               minWidth="955" minHeight="600"
                creationComplete="application1_creationCompleteHandler(event)">
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <fx:Script>
        <![CDATA[
            import com.esri.serialization.json.JSON;
            
            import mx.events.FlexEvent;
            import mx.rpc.events.FaultEvent;
            import mx.rpc.events.ResultEvent;
            import mx.rpc.http.HTTPService;
            import mx.utils.ObjectUtil;
            
            private var httpServ:HTTPService;
            
            
            private function xmlResult(event:ResultEvent):void
            {
                var Info:Object = JSON.decode(event.result.toString());
                trace(ObjectUtil.toString(Info.networkDataset.networkAttributes));
            }
            
            private function xmlFault(event:FaultEvent):void
            {
                var sInfo:String = "Error: ";
                sInfo += "Event Target: " + event.target + "\n\n";
                sInfo += "Event Type: " + event.type + "\n\n";
                sInfo += "Fault Code: " + event.fault.faultCode + "\n\n";
                sInfo += "Fault Info: " + event.fault.faultString;
                trace(sInfo);
            }
            
            protected function application1_creationCompleteHandler(event:FlexEvent):void
            {
                httpServ = new HTTPService;
                httpServ.url = "http://tasks.arcgisonline.com/ArcGIS/rest/services/NetworkAnalysis/ESRI_Route_NA/NAServer/Route?f=pjson";
                httpServ.addEventListener(ResultEvent.RESULT, xmlResult);
                httpServ.addEventListener(FaultEvent.FAULT, xmlFault);
                httpServ.send();
            }
            
        ]]>
    </fx:Script>
</s:Application>

[carinestolz]

Many thanks Robert for your reply.

I will use your example to code the function by myself.

Thanks again 🙂

Carine