(Delphi ActiveX) WhatsApp Cloud API Send Message

See more WhatsApp Examples

Demonstrates how to send a message using the WhatsApp Cloud API (Business App)

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
json: TChilkatJsonObject;
resp: IChilkatHttpResponse;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := TChilkatHttp.Create(Self);

// The following JSON is sent in the request body.

// {
//   "messaging_product": "whatsapp",
//   "to": "16302581871",
//   "type": "template",
//   "template": {
//     "name": "hello_world",
//     "language": {
//       "code": "en_US"
//     }
//   }
// }

json := TChilkatJsonObject.Create(Self);
json.UpdateString('messaging_product','whatsapp');
json.UpdateString('to','15555555555');
json.UpdateString('type','template');
json.UpdateString('template.name','hello_world');
json.UpdateString('template.language.code','en_US');

http.AuthToken := 'EAANrS5....yFB9Ma';
http.SetRequestHeader('Content-Type','application/json');

resp := http.PostJson3('https://graph.facebook.com/v18.0/111111111111111/messages','application/json',json.ControlInterface);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add(IntToStr(resp.StatusCode));
Memo1.Lines.Add(resp.BodyStr);

// Here's a screenshot of our WhatsApp test app.

// 
end;