I'm trying to consume my api using a console application and I'm getting an exception. When I'm trying to put my JSON data to my model, these are the following exceptions:
Exception thrown: 'Newtonsoft.Json.JsonSerializationException' in mscorlib.dll Exception thrown: 'System.AggregateException' in mscorlib.dll Exception thrown: 'Newtonsoft.Json.JsonSerializationException' in ConsoleApplication1.exe
My Source Code:
class Program
{
public class IndividualModel
{
public string PayorCode { get; set; }
public string Adminlvl { get; set; }
public string LvlDesc { get; set; }
}
static void Main(string[] args)
{
HttpClient cons = new HttpClient();
cons.BaseAddress = new Uri("http://localhost:52505/");
cons.DefaultRequestHeaders.Accept.Clear();
cons.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
try
{
MyAPIGet(cons).Wait();
}
catch (AggregateException e)
{
try
{
throw e.GetBaseException();
}
catch (Exception ea)
{
//throw ea.InnerException;
Console.WriteLine(ea.ToString());
}
}
}
static async Task MyAPIGet(HttpClient cons)
{
using (cons)
{
HttpResponseMessage res = await cons.GetAsync("api/PayorPortal/GetPayorUserLevel?payorCode=STARCAR&adminlvl=1");
res.EnsureSuccessStatusCode();
if (res.IsSuccessStatusCode)
{
IndividualModel tag = await res.Content.ReadAsAsync<IndividualModel>();
Console.WriteLine("\n");
Console.WriteLine("---------------------Calling Get Operation------------------------");
Console.WriteLine("\n");
Console.WriteLine("tagId tagName tagDescription");
Console.WriteLine("-----------------------------------------------------------");
Console.WriteLine("{0}\t{1}\t\t{2}", tag.Adminlvl, tag.LvlDesc, tag.PayorCode);
Console.ReadLine();
}
}
}
}
}
this is the json data
"[{\\"PayorCode\\":\\"STARCAR\\",\\"Adminlvl\\":\\"1\\",\\"LvlDesc\\":\\"Administrator\\"},{\\"PayorCode\\":\\"STARCAR\\",\\"Adminlvl\\":\\"2\\",\\"LvlDesc\\":\\"System Admin\\"},{\\"PayorCode\\":\\"STARCAR\\",\\"Adminlvl\\":\\"3\\",\\"LvlDesc\\":\\"System User\\"}]"
When you're getting your JSON data, please check if you're getting a single one or a list. The reason you're getting this Newtonsoft.Json.JsonSerializationException
is because your it can't map your JSON data to your Model since you're mapping it to an IndividualModel
.
My suggestion is you add a breakpoint right after the GetAsync()
then check if it's a List. If it is, then change this line:
IndividualModel tag = await res.Content.ReadAsAsync<IndividualModel>();
to this:
List<IndividualModel> tag = await res.Content.ReadAsAsync<List<IndividualModel>>();
Hope it helps!
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