pass parameters to HTTPService and use them inside the URL

Question

Flex3 + Cairngorm. I have my service in Servicis.mxml:

<mx:HTTPService id="docIndex" url="{URL_PREFIX}/jobs/{???}/docs" resultFormat="e4x"/>

And I call it from my generic restful delegate like this:

public function index(params:Object):void {
  var call:AsyncToken = services.getHTTPService(resourceName+"Index").send(params);
  call.addResponder(responder);
 }

I want to know how I can use the params Object I pass inside the url definition (the ??? above). And please tell me how you would go about searching an answer to this in the documentation, I'd like to be a little more independet on these problems...

EDIT: I'll explain myself if you didn't understand my problem: I have a restful api written in rails to which I'm connecting. Doc is a child resource of Job. If I want to get all docs I have to supply a job_id too. Therefore in the service the url must be changed for each .send() call, with the proper job_id (the ??? part above). I'd like to call it like myDelegate.index({job_id:34}) and insert that job_id field in the Service URL.

Answer 1

Write a class that extends HTTPService and allows you to set parameters into the url. Then, in your index function you can fetch it with services.getHTTPService, and call a function you create that sets the url values for you.

In your service locator create an instance of your class rather than a flat HTTPService.