Initialization
To use the WhatsApp package, initialize the class object using the constructor.
const accessToken = 'YOUR_ACCESS_TOKEN';
const fromNumberId = 'YOUR_BUSINESS_PHONE_NUMBER_ID';
final whatsapp = WhatsApp(accessToken, fromNumberId);
| param | type | required | description |
|---|---|---|---|
accessToken | String | yes | Access token for your Facebook App |
fromNumberId | String | yes | Phone Number ID for your WhatsApp business |
⚙️ API Version Customization
By default, the package uses WhatsApp Business API version v23.0. If you want to target a specific Graph API release, you can override the default version using the setVersion method. This ensures compatibility with version-dependent features and prevents issues with deprecated endpoints.
Default Version
If not set, the API version defaults to v23.0.
String version = "v21.0"; // specify as needed
whatsapp.setVersion(version);