AngularJS with WebAPI pass JSON parameters to $http.get

the problem is as follows:

I want to consume a RESTful Service using get with a body. For testing purposes I am using Fiddler Web Debugger.

Now, the following GET request put into Fiddler gets me the result I am expecting:

GET http://localhost:3787/TerminologyService/Autosuggest/ HTTP/1.1
Host: localhost:3787
Content-Length: 215
Content-Type: application/json

{ 
"Text": "war",
"Count": "100",
"MedicationWeight": "7",
"ActivityWeight": "0",
"DiseaseWeight": "0",
"GeneWeight": "0",
"SymptomWeight": "0",
"AnatomyWeight": "0",
"OrderingType": "CATEGORY_DIVERSITY"
}

So now I'd do the same thing using $http.get. Here is what i have so far:

function getTerms(text, count, medWeight, actWeight, disWeight, genWeight, symWeight, anaWeight, orderingType)
    {
        var config = {
            headers: {'Content-Type' : 'application/json'},
            params: {Text : text,
                            Count : count,
                            MedicationWeight : medWeight,
                            ActivityWeight : actWeight,
                            DiseaseWeight : disWeight,
                            GeneWeight : genWeight,
                            SymptomWeight : symWeight,
                            AnatomyWeight : anaWeight,
                            OrderingType : orderingType}
        }

        return $http.get(
            'http://localhost:3787/TerminologyService/Autosuggest', config);
    }

This does get formed into a GET url:

http://localhost:3787/TerminologyService/Autosuggest?ActivityWeight=0&AnatomyWeight=0&Count=10&DiseaseWeight=0&GeneWeight=0&MedicationWeight=7&OrderingType=CATEGORY_DIVERSITY&SymptomWeight=0&Text=war

Unfortunately, this causes an error 500 at the webservice.

When I check the captured traffic in Fiddler thats been generated by the $http.get call I find that the JSON data is not being passed as the body (obviously, since it is passed in the URL). So I'm not able to get what I first tested in Fiddler

Any help is much appreciated