I'm trying to figure out how to pass a filter parameter on a Services rest call.  I've got a node of a specific type that I'd like to access through the Services module and rest.  I'm testing with FireFox RestClient and I can get all nodes of the particular type by typing

    http://localhost/drupal/gpa/node/?parameters[type]=node_type

But, I'd like to be able to get **one** specific instance of 'node_type' that contains a specific field value.  I've taken a look at [node_resource.inc][1], but, I can't seem to make heads or tails of what I need to use as parameters.  I've tried several variations that typically return no result, or, all instances of, 'node_type'.

Is it possible to filter the returned results, or, is my approach incorrect?


  [1]: http://api.drupalhelp.net/api/services/resources--node_resource.inc/7.3