Return JSON in Web API

Question

I am consuming a Odata end point in my web API and trying return JSON response from the API.My controller is like below

public class GetEmployeesDEVController : ApiController
{
    [HttpGet]
    public async Task<EmployeeDTO.RootObject> Get()
    {
        EmployeeDTO.RootObject returnObj = new EmployeeDTO.RootObject();
        var responsedata = "";
        using (var client_Core = new HttpClient())
            {
                ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(delegate { return true; });
                Uri uri = new Uri(BaseURL_Core);
                client_Core.BaseAddress = uri;
                client_Core.DefaultRequestHeaders.Accept.Clear();
                client_Core.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                client_Core.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray_Core));
                string core_URL = BaseURL_Core;
                var response = client_Core.GetAsync(core_URL).Result;
                responsedata = await response.Content.ReadAsStringAsync();
      returnObj = JsonConvert.DeserializeObject<EmployeeDTO.RootObject>(responsedata);
        return returnObj;
    }

Here EmployeeDTO is the model class for the Odata response. When I call my API it returns nulls and dont return any data. But the responsedata holds JSON that has data. Screenshot of responsedata and returnObj is below

I am not sure if I am missing anything here. All I need to get from my API is the exact response from the Odata endpoint that is stored in responsedata

Shouldn’t you deserialize the object instead of serializing it? — OrElse
– OrElse, Commented Aug 18, 2018 at 8:15
@OrElse Yes I am Deserializing it was mistake when I pasted as I was trying to troubleshoot the issue. I have the above behaviour while deserializing — trx
– trx, Commented Aug 18, 2018 at 8:17
In your case, I would separate the issues like pasting as classes the responsedata in visual studio and then trying to deserialize on it. — OrElse
– OrElse, Commented Aug 18, 2018 at 8:28
Check this line : client_Core.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); you will get json value in responsedata then why you are trying to convert in json again, just return responsedata; — saAction
– saAction, Commented Aug 18, 2018 at 9:06

Or Yaacov · Accepted Answer · 2018-08-18 08:14:17Z

2

add to your global.asax

GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSetting=
new JsonSerializerSettings
{
    Formatting = Formatting.Indented,
    TypeNameHandling = TypeNameHandling.Objects,
    ContractResolver = new CamelCasePropertyNamesContractResolver()
};

answered Aug 18, 2018 at 8:14

Or Yaacov

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