إرسال ملف عن طريق WhatsAPP مع C Sharp

// Asign vars
var data = new NameValueCollection();
data["class"] = "whatsapp";
data["method"] = "sendfile";
data["user"] = "user";
data["password"] = "password";
data["platformid"] = "100";
data["destination"] = "3460000000";
data["type"] = "image";
data["fileurl"] = "https://www.example.com/image.jpg";
data["thumburl"] = "https://www.example.com/thumb.jpg";
data["message"] = "test+message";

// Create Web client 
var wb = new WebClient();

// Execute POST petition
var response = wb.UploadValues("https://www.afilnet.com/api/http/", "POST", data);

// Get response
string responseString = Encoding.UTF8.GetString(response);

// Asign vars
var data = new NameValueCollection();
data["class"] = "whatsapp";
data["method"] = "sendfile";
data["platformid"] = "100";
data["destination"] = "3460000000";
data["type"] = "image";
data["fileurl"] = "https://www.example.com/image.jpg";
data["thumburl"] = "https://www.example.com/thumb.jpg";
data["message"] = "test+message";

// Create Web client 
var wb = new WebClient { Credentials = new NetworkCredential("user", "password") };

// Execute POST petition
var response = wb.UploadValues("https://www.afilnet.com/api/http/", "POST", data);

// Get response
string responseString = Encoding.UTF8.GetString(response);

String afilnet_class="whatsapp";
String afilnet_method="sendfile";
String afilnet_user="user";
String afilnet_password="password";
String afilnet_platformid="100";
String afilnet_destination="3460000000";
String afilnet_type="image";
String afilnet_fileurl="https://www.example.com/image.jpg";
String afilnet_thumburl="https://www.example.com/thumb.jpg";
String afilnet_message="test+message";
	
// Allow SSL/TLS config
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

// We create the webservice instance (Register Web Service first in project)
var service = new WebService.ApplicationServicesPortTypeClient();

// Call to WebService method
String response = service.call(afilnet_user, afilnet_password, afilnet_class, afilnet_method, "{\"platformid\":\""+afilnet_platformid+"\",\"destination\":\""+afilnet_destination+"\",\"type\":\""+afilnet_type+"\",\"fileurl\":\""+afilnet_fileurl+"\",\"thumburl\":\""+afilnet_thumburl+"\",\"message\":\""+afilnet_message+"\"}");