services: [
  {
    code: "HT-LPN-E",
    description: "High-Tech Evaluation",
    provider_cost: "$300.00",
    quantity: 1,
    payer_cost: "$400.00",
    payer_cost_cents: 40000,
    provider_cost_cents: 30000
  }
]

    public class Service
    {
        public string Code { get; set; }
        public string Description { get; set; }
        public string ProviderCost { get; set; }
        public int Quantity { get; set; }
        public string PayerCost { get; set; }
        public int PayerCostCents { get; set; }
        public int ProviderCostCents { get; set; }
    }

    public class EncoderDecoderConfiguration : IEncoderDecoderConfiguration
    {
        public IEncoder GetEncoder()
        {
            var jsonWriter = new JsonWriter(new DataWriterSettings(CombinedResolverStrategy()),
                                            new[] { "application/.*json", "text/.*json" });

            var urlEncoderWriter = new UrlEncoderWriter(new DataWriterSettings(CombinedResolverStrategy()),
                                                        new[] { "application/x-www-form-urlencoded" });

            var writers = new List<IDataWriter> { jsonWriter, urlEncoderWriter };

            var dataWriterProvider = new RegExBasedDataWriterProvider(writers);

            return new DefaultEncoder(dataWriterProvider);
        }

        public IDecoder GetDecoder()
        {
            var jsonReader = new JsonReader(new DataReaderSettings(CombinedResolverStrategy(), new Iso8601DateFilter()), new[] { "application/.*json", "text/.*json" });

            var readers = new List<IDataReader> { jsonReader };

            var dataReaderProvider = new RegExBasedDataReaderProvider(readers);

            return new DefaultDecoder(dataReaderProvider);
        }

        static CombinedResolverStrategy CombinedResolverStrategy()
        {
            var resolver = new CombinedResolverStrategy(
                new JsonResolverStrategy(),
                new SnakeCaseResolverStrategy()
                ); 
            return resolver;
        }
    }

    public class SnakeCaseResolverStrategy : PocoResolverStrategy
    {
        public override IEnumerable<DataName> GetName(MemberInfo member)
        {
            var localName = member.Name.Underscore();
            return new [] {new DataName(localName), };
        }
    }

TL;DR

Longer Summary

Details

var c = new EasyHttp.Http.HttpClient("http://localhost:11270");
var r = c.Get("/");
r = c.Post("/Account/LogOn", ...);
// r is not the response for a POST to /Account/LogOn (which was a 302)
// r is instead the response for the GET to whatever the redirect-location was.
// thus, r does not contain the cookies sent back w/ the 302

var c = new EasyHttp.Http.HttpClient("http://localhost:11270");
var r = c.Get("/");
c.Request.Uri = "http://localhost:11270/Account/LogOn";
c.Request.Method = EasyHttp.Http.HttpMethod.POST;            
c.Request.ContentType = "application/x-www-form-urlencoded";
c.Request.Data = new { ... }
c.Request.ContentEncoding = EasyHttp.Http.HttpContentEncoding.Utf8;

var basicRequest = c.Request.PrepareRequest();
basicRequest.AllowAutoRedirect = false;

c.Response.GetResponse(basicRequest, "", false);
r = c.Response;
// Now save the cookies, and follow the redirect manually (as expected)

string bodyContent = "queryParameterFormattedData";
var client = new HttpClient();
var response = client.Post(url,bodyContent);

 HttpClient client = new HttpClient();
 var response = client.Post(new Uri(Settings.BaseUrl, tokenEndpoint).ToString(),
                new DynamicParameterWrapper(queryParameters),HttpContentTypes.TextPlain);

       at EasyHttp.Codecs.DefaultEncoder.Encode(Object input, String contentType)
       at EasyHttp.Http.HttpRequest.SetupData()
       at EasyHttp.Http.HttpRequest.SetupBody()
       at EasyHttp.Http.HttpRequest.PrepareRequest()
       at EasyHttp.Http.HttpClient.ProcessRequest()
       at EasyHttp.Http.HttpClient.Post(String uri, Object data, String contentType)
       at VikingAPI.OAuth.Workflow.GetRequestToken(String tokenEndpoint) in C:\tmp\vikingapi\src\VikingAPI\VikingAPI\OAuth\Workflow.cs:line 46
       at VikingAPITests.WorkflowTest.WorkflowGetRequestToken() in C:\tmp\vikingapi\src\VikingAPI\VikingAPITests\WorkflowTest.cs:line 30

public void Class {
}

public class {
}