Paypal api – How to access Redirect Url of Paypal through

Using Paypal for payment it is working fine when I hit html form from a browser then It redirect’s me to Paypal page for payment but on other side when I try to hit it from postman api then it gives error on postman as it is redirecting so my question is that how I would access that redirect or url of that redirect in Postman API?

I used this code

try {
                $response = $this->gateway->purchase(array(
                    'amount' => $order_amount->total_price,
                    'currency' => env('PAYPAL_CURRENCY'),
                    'returnUrl' => url('success'),
                    'cancelUrl' => url('error'),
                ))->send();
                if ($response->isRedirect()) {
                     $response->redirect(); // this will automatically forward the customer
                } else {
                    // not successful
                    return $response->getMessage();
                }
            } catch (Exception $e) {
                

return $e->getMessage();
}