Introduction:

Webhooks are one of a few ways web applications can communicate with each other. It allows you to send real-time data from one application to another whenever a given event occurs. You can use the webhook to determine to which endpoint we should forward the real-time data (or also known as Notifications). Whenever that trigger event occurs, the WhatsApp Business API client sees the event, collects the data, and immediately sends a notification (user-defined HTTP callbacks) to the webhook URL specified in the application settings. Some example events are: - updating the status of sent messages - indicating when you receive a message.

1. Set Webhook URL

The webhook URL is a URL where the WhatsApp Business API sends the notifications to, triggered by specific events.

Request Schema:

{
  "url": URL,
  "headers": {
    "header_1": string,
    "header_2": string
  }
}

{
  "meta": {
    "success": false | true,
    "http_code": 400,
    "developer_message": string,
    "details": [
      string
    ]
  }
}

{
  "meta": {
    "success": false,
    "http_code": 500,
    "developer_message": string
  }
}

{
  "url": URL,
  "headers": {
    "header_1": string,
    "header_2": string
  }
}

Example setting webhook with Basic Auth:

If the webhook URL needs to be authorized by user, USER and PASS should be provided in the header Authorization that contains Basic base64(USER:PASS).

Request body example for USER=testuser and PASS=testpass

{
  "url": "https://www.example.com/webhook",
  "headers": {
    "Authorization": "Basic dGVzdHVzZXI6dGVzdHBhc3M="
  }
}

2. Get Webhook URL

If the webhook URL is already set up as described above, you can send a GET request to get the URL.

Request Schema:

{
  "url": URL,
  "headers": {
    "header_1": string,
    "header_2": string
  }
}

{
  "meta": {
    "success": false | true,
    "http_code": 40X,
    "developer_message": string,
    "details": [
      string
    ]
  }
}

{
  "meta": {
    "success": false,
    "http_code": 500,
    "developer_message": string
  }
}

Example:

D360-API-KEY: adafABC43
Content-Type: application/json

{
  "url": "https://www.example.com/webhook",
  "headers": {
    "Authorization": "Basic dGVzdHVzZXI6dGVzdHBhc3M="
  }
}

​