Fiddler testing API Post passing a [Frombody] class

Question

I have this very simple C# APIController named \"TestController\" with an API method as:

[HttpPost]
public string HelloWorld([FromBody] Testing t)
{
    return t         


        

Answer 1

For Question 1: I'd implement the POST from the .NET client as follows. Note you will need to add reference to the following assemblies: a) System.Net.Http b) System.Net.Http.Formatting

public static void Post(Testing testing)
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri("http://localhost:3471/");

        // Add an Accept header for JSON format.
        client.DefaultRequestHeaders.Accept.Add(
            new MediaTypeWithQualityHeaderValue("application/json"));

        // Create the JSON formatter.
        MediaTypeFormatter jsonFormatter = new JsonMediaTypeFormatter();

        // Use the JSON formatter to create the content of the request body.
        HttpContent content = new ObjectContent(testing, jsonFormatter);

        // Send the request.
        var resp = client.PostAsync("api/test/helloworld", content).Result;

    }

I'd also rewrite the controller method as follows:

[HttpPost]
public string HelloWorld(Testing t)  //NOTE: You don't need [FromBody] here
{
  return t.Name + " " + t.LastName;
}

For Question 2: In Fiddler change the verb in the Dropdown from GET to POST and put in the JSON representation of the object in the Request body