ASP.NET Web API 2 with Angular woes

Hi there

This question relates to a problem I'm having with my (first) Web API 2 project. One of the actions on my controller is being hit successfully, but the values of the parameter passed in are all in their default states and do not correspond to the values sent from the Angular behaviour.

My controller looks like this:

[HttpPost]
public IEnumerable<string> Post(SearchParameters id)
{
    return null;
}

public struct SearchParameters
{
    string brokerIsUnallocated;
    string brokerIncludeDeleted;
    string businessType;
    bool codeC;
    bool codeD;
    bool codeP;
    bool codeS;
    bool codeT;
    bool codeX;
    string companyName;
    string contactName;
    string country;
    string customerId;
    string department;
    string selectedBroker;
    string town;
}

Select allOpen in new window

My Web API 2 controller is successfully being hit, but the view model passed as a parameter is not being populated. It contains nulls for strings and falses for booleans.

My AngularJS call looks like this:

        $scope.search = function () {
            var id = { id : {
                        selectedBroker: typeof ($scope.selectedBroker) === 'undefined' ? 0 : $scope.selectedBroker.userIdField,
                        brokerIsUnallocated: $scope.brokerIsUnallocated || false,
                        brokerIncludeDeleted: $scope.brokerIncludeDeleted || false,
                        customerId: $scope.customerCustomerId || 0,
                        businessType: $scope.customerBusinessType || "",
                        companyName: $scope.customerCompanyName || "",
                        town: $scope.customerTown || "",
                        department: $scope.selectedDepartment || 0,
                        contactName: $scope.customerContactName || "",
                        country: $scope.selectedCountry || 0,
                        codeP: $scope.codeP || false,
                        codeC: $scope.codeC || false,
                        codeT: $scope.codeT || false,
                        codeS: $scope.codeS || false,
                        codeX: $scope.codeX || false,
                        codeD: $scope.codeD || false
                    }
                }

            $http({
                method: 'POST',
                url: '/api/customer',
                data: id
            });
        }

Select allOpen in new window

Fiddler looks like this:


I am using the default routing, like this:

public static void Register(HttpConfiguration config)
{
    config.MapHttpAttributeRoutes();

    config.Routes.MapHttpRoute(
        name: "DefaultApi",
        routeTemplate: "api/{controller}/{id}",
        defaults: new { id = RouteParameter.Optional }
    );
}

Select allOpen in new window

Can anyone suggest what's going on?

Looking forward to your responses. Mark