How to redirect to third party url after confirming the order???

How to redirect to third party url after confirming the order???

  public void PostProcessPayment(PostProcessPaymentRequest postProcessPaymentRequest)
        {
//Redirection to third party url
}

Hi,

It's done in a plugin source code. Please have a look at a built-in "Nop.Plugin.Payments.PayPalStandard" plugin, "PostProcessPayment" method of "PayPalStandardPaymentProcessor" class as an example. Also have a look at How to code my own payment method

thank you so much

I was following the PayPal code for that, however, it redirects to the cart page instead of redirecting to the third party url.