public async Task <PaymentMethodNonce> AuthorizePaypalPaymentAsync(bool requestBillingAgreement, string[] additionalParameters = null, PayPalRequest request = null)
{
var actionListener = new PaymentMethodNonceListener();
try
{
AddListener(actionListener);
PayPal.AuthorizeAccount(this, additionalParameters);
if (requestBillingAgreement)
{
PayPal.RequestBillingAgreement(this, request ?? new PayPalRequest());
}
return(await actionListener.Task());
}
finally
{
RemoveListener(actionListener);
}
}
