using RestSharp;

using System;

using System.Text.Json;

​

public class Program

{

    public static void Main()

    {

        // send POST request with RestSharp

        var client = new RestClient("https://testapi.jasonwatmore.com");

        var request = new RestRequest("products");

        request.AddBody(new

        {

            name = "RestSharp POST Request Example"

        });     

        var response = client.ExecutePost(request);

​

        // deserialize json string response to Product object

        var options = new JsonSerializerOptions

        {

            PropertyNameCaseInsensitive = true

        };

        var product = JsonSerializer.Deserialize<Product>(response.Content!, options)!;

        // output result

        Console.WriteLine($"""

        ----------------

        json properties

        ----------------

        id: {product.Id}

        name: {product.Name}

        createdAt: {product.CreatedAt}

        ----------------

        Documentation at https://jasonwatmore.com/c-restsharp-http-post-request-examples-in-net

        """);

    }

}

​

public class Product

{

    public int Id { get; set; }

    public string Name { get; set; }

    public DateTime CreatedAt { get; set; }

}