How to Fetch Whatsapp public profile of unknown number if it exist like Photo, Status, last seen in real time?

Question

Use-case: Sending personalised message to the potential leads.

Is this possible? Companies like Seon is able to fetch attributes like account exist check, last seen, photo graph, status etc in realtime

What I am able to achieve:

In Real Time: I am able to check whether contact exist or not using Whatsapp contact API

POST /v1/contacts
{
  "blocking": "wait" | "no_wait",
  "contacts": [
    "16315551000",
    "+1 631 555 1001",
    "6315551002",
    "+1 (631) 555-1004",
    "1-631-555-1005"
  ],
  "force_check": false | true
}

Non Real Time: I was to fetch account exist check, last seen, photo graph, status via appium (test automation framework)

Problem with my solution:

1. It is costly to scale as renting emulator on cloud is very costly
2. It is not real time.(by real time I mean getting solution in less than 2-4 sec)

Answer 1

Currently, there is no option/support in WhatsApp Business API to get the user's information by providing a phone number.

In Real Time: I am able to check whether contact exist or not using Whatsapp contact API

With the contacts node you can:

• Verify that a phone number in your database belongs to a valid WhatsApp account. You must ensure that the status is valid before you can message a user.
• Get the WhatsApp ID for a phone number. WhatsApp IDs are needed to send messages and user notifications.