Faturayı Whatsapp Üzerinden Gönderir

var client = new RestClient("https://apitest.nilvera.com/einvoice/Purchase/Whatsapp/Send");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <API KEY>");
request.AddHeader("Content-Type", "application/json");
var body = 
{
    ""UUID"": ""3fa85f64-5717-4562-b3fc-2c963f66afa6"",
    ""Phone"": ""string""
};
request.AddParameter("application/json", body, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);