Dart

WhatsApp Cloud API Send Message

See more WhatsApp Examples

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

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final http = CkHttp();

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

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

  final json = CkJsonObject();
  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');

  final resp = CkHttpResponse();
  try {
    http.httpJson('POST', 'https://graph.facebook.com/v18.0/111111111111111/messages', json, 'application/json', resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(resp.statusCode);
  print(resp.bodyStr);

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

  // 
}