Receive WhatsApp messages using PHP and ultramsg

$data = file_get_contents("php://input");

$event = json_decode($data, true);

if(isset($event)){

//Here, you now have event and can process them how you like e.g Add to the database or generate a response

$file = 'log.txt';

$data =json_encode($event)."\n";

file_put_contents($file, $data, FILE_APPEND | LOCK_EX);

}

To view the full article and the multiple uses of WhatsApp API .. You can visit the ultramsg website.

Full whatsapp API documentation here