Post with JObject Parameter

Question

User-839182035 posted

Hi all.

Please, I need help. I need to call a Post method defined in a Controller, which has a JObject Parameter.

I'm getting a 500 Error code When I call this method with PostAsJsonAsync or PostAsync.

The code below shows how I'm calling this Post Method:

using (var client = new HttpClient())
{
client.BaseAddress = new Uri("http://localhost:54810");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

var jsonObject = new JObject();
dynamic json = jsonObject;
json.Add("mytoken", "teste");

json.eventos = new JArray() as dynamic;

dynamic evento = new JObject();
evento.ID = 1;
evento.Latitude = 50;
evento.Longitude = 20;
evento.Local = 30;

json.eventos.Add(evento);

HttpResponseMessage response = await client.PostAsJsonAsync("api/eventocontrole", jsonObject);

The response.IsSuccessStatusCode property is returning false.

If I change this parameter type from JObject to any other custom class (eg. User, Product, Cart), the property IsSuccessStatusCode returns true!

Am I using JObject incorrectly? Should I not use JObject as parameter?

Just to clarify, I'm using JObject because I need to pass a list of objects and a token string to validate my request.

Thanks (Thiago from Brazil)

Answer 1

User1066278571 posted

The JObject is not understood on the server side. You can add your token using the SetBearerToken method.

 var client = new HttpClient();
 client.SetBearerToken(token);

If you want to use JObject to create your request body, use the ToObject<> method to send the HTTP POST. If you want to send a JObject to the server, then this needs to be implemented as a parameter on the server side.

greetings Damien

Answer 2

User-839182035 posted

I could not to use JObject like parameter.

After many tests, the only solution was to create a custom class

public class RequestData<T>
{
public T data { get; set; }
public string token { get; set; }
}

My test below is calling this server method:

using (var client = new HttpClient())
{
client.BaseAddress = new Uri("http://localhost:54810");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

List<EventoControle> eventos = new List<EventoControle>();

EventoControle evento = new EventoControle();
evento.ID = 1;
evento.Latitude = 50;
evento.Longitude = 20;
evento.Local = 30;

eventos.Add(evento);

RequestData<List<EventoControle>> rq = new RequestData<List<EventoControle>>();
rq.data = eventos;
rq.token = "teste";

HttpResponseMessage response = await client.PostAsJsonAsync<RequestData<List<EventoControle>>>("api/eventocontrole", rq);
if (response.IsSuccessStatusCode)
{
}
}

My server method:

public void PostEventoControle(RequestData<List<EventoControle>> json)