MyAPIPut.cs

static async Task MyAPIPut(HttpClient cons)
{
using (cons)
{
HttpResponseMessage res = await cons.GetAsync("api/tblTags/2");
res.EnsureSuccessStatusCode();
if (res.IsSuccessStatusCode)
{
tblTag tag = await res.Content.ReadAsAsync<tblTag>();
tag.tagName = "New Tag";
res = await cons.PutAsJsonAsync("api/tblTags/2", tag);
Console.WriteLine("\n");
Console.WriteLine("\n");
Console.WriteLine("-----------------------------------------------------------");
Console.WriteLine("------------------Calling Put Operation--------------------");
Console.WriteLine("\n");
Console.WriteLine("\n");
Console.WriteLine("-----------------------------------------------------------");
Console.WriteLine("tagId tagName tagDescription");
Console.WriteLine("-----------------------------------------------------------");
Console.WriteLine("{0}\t{1}\t\t{2}", tag.tagId, tag.tagName, tag.tagDescription);
Console.WriteLine("\n");
Console.WriteLine("\n");
Console.WriteLine("-----------------------------------------------------------");

Console.ReadLine();
}
}
}