Graph API

Subscribe to the App (WABA) that we had created

curl -X POST \  ‘https://graph.facebook.com/‘ \  -H ‘Authorization: Bearer SYSTEM_USER_ACCESS_TOKEN’

The below response would be expected if the webhook event for the phone number is successfully done.

{  “success”: “true” }

To Get Phone Number ID

Firstly, we need to register the Phone Number to which you need to send messages

Before You Start

Before registering, you need to find that phone number’s ID. Get phone number’s ID, make the below following API call:

curl -X GET \ ‘https://graph.facebook.com/‘ \ -H ‘Authorization: Bearer SYSTEM_USER_ACCESS_TOKEN’

A Successful Response includes all phone numbers that were connected to your WABA:

{

  “data”: [

    {

      “verified_name”: “Jasper’s Market”,

      “display_phone_number”: “+1 631-5X5-XXXX”,

      “id”: “19063X52XXX43451”,

      “quality_rating”: “GREEN”

    },

    {

      “verified_name”: “Jasper’s Ice Cream”,

      “display_phone_number”: “+1 081-XXX-996”,

      “id”: “191X623XXXX32103”,

      “quality_rating”: “NA”

    }

  ]

}

Register Phone Number

With the phone number we can register. The registration API call, has two actions simultaneously: Register the phone.

Enable two-step verification 

Set a 6-digit registration code — this code must be set from your end. Save the code.

Sample request:

curl -X POST \

  ‘https://graph.facebook.com/‘ \  -H ‘Authorization: Bearer SYSTEM_USER_ACCESS_TOKEN’ \

  -d ‘{

    “messaging_product”: “whatsapp”,

    “pin”: “6_DIGIT_PIN”

  }’

Sample response:

{  “success”: “true” }

If the above Graph API calls succeed, you can send/receive messages from the WhatsApp Business Account number using Graph API.