HELP

Create a script with the following content and provide its URL as WebHook.

define("API_KEY", "YOUR_API_KEY");

try {
    if (isset($_SERVER["HTTP_X_SG_SIGNATURE"])) {
        $hash = base64_encode(hash_hmac('sha256', $_POST["messages"], API_KEY, true));
        if ($hash === $_SERVER["HTTP_X_SG_SIGNATURE"]) {
            $messages = json_decode($_POST["messages"], true);

            /**
             * For example :-
             * $messages = [
             *                 0 => [
             *                          "ID" => "1",
             *                          "number" => "+11234567890",
             *                          "message" => "This is a test message.",
             *                          "deviceID" => "1",
             *                          "simSlot" => "0",
             *                          "userID" => "1",
             *                          "status" => "Received",
             *                          "sentDate" => "2018-10-20T00:00:00+02:00",
             *                          "deliveredDate" => "2018-10-20T00:00:00+02:00"
             *                          "groupID" => null
             *                      ]
             *             ]
             *
             * senDate represents the date and time when the message was received on the device.
             * deliveredDate represents the date and time when the message was received by the server.
             */

            foreach ($messages as $message) {
                if(strtolower($message["message"]) === "hi") {
                    // Reply to message using API or execute some commands. Possibilities are limitless.
                }
            }
        } else {
            http_response_code(401);
            error_log("Signature don't match!");
        }
    } else {
        http_response_code(400);
        error_log("Signature not found!");
    }
} catch (Exception $e) {
    error_log($e->getMessage());
}
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