using System;

using RestSharp;

using System.Net.Http;

using System.Threading.Tasks;

using  Newtonsoft.Json;     

 public class AuthToken

 {

     [JsonProperty(PropertyName = "public_key")]

     public string PublicKey { get; set; }

     [JsonProperty(PropertyName = "secret_key")]

     public string SecretKey { get; set; }

​

 }

​

public class Program

{

    public async static void Main()

    {

        var token=await GeToken();

        Console.WriteLine("{0}", token);

        //var options = new RestClientOptions("https://api.sandbox.protecht.com/api/v2/orders");

        //var client = new RestClient(options);

        //var request = new RestRequest("");

        //request.AddHeader("Authorization", "JWT {token}");

        //request.AddHeader("Accept", "application/json");

        //request.AddJsonBody("{\"currency\":\"USD\",\"payment\":{\"type\":\"invoice\"}}", false);

        //var response = await client.PostAsync(request);

​

        Console.WriteLine("Hello World");

    }

    public async static Task<string> GeToken()

    {

        var options = new RestClientOptions("https://api.sandbox.protecht.com/api/v2/auth/token");

        var client = new RestClient(options);

        var request = new RestRequest("");

        var auth = new AuthToken

        {

            PublicKey = "pk_sandbox_d5e23350211ccb3c40771776bf2e17dadaa7aa3e",

            SecretKey = "sk_sandbox_2608c999aef635f0fb3403344147b0b84746378a"

        };

         var body=JsonConvert.SerializeObject(auth);

        Console.WriteLine(body);

        request.AddHeader("Accept", "application/json");

        request.AddJsonBody(body);

        var response = await client.PostAsync(request);

        return JsonConvert.DeserializeObject<string>(response.Content);

    }

}