PayPal client-side? What is minimum code required for multiple buttons? - paypal

Question

I'm working with .Net, trying to implement multiple buttons.
I'm getting an answer from PayPal (payment id, payer-id, etc.), but everything is client-side. How can I check the payment on server-side?
Do I need to implement all this code for each button?
<script>
paypal.Button.render({
env: 'production', // Optional: specify 'sandbox' environment
client: {
sandbox: 'xxxxxxxxx',
production: 'xxxxxxxxx'
},
payment: function() {
var env = this.props.env;
var client = this.props.client;
return paypal.rest.payment.create(env, client, {
transactions: [
{
amount: { total: '1.00', currency: 'USD' }
}
]
});
},
commit: true, // Optional: show a 'Pay Now' button in the checkout flow
onAuthorize: function(data, actions) {
// Optional: display a confirmation page here
return actions.payment.execute().then(function() {
// Show a success page to the buyer
});
}
}, '#paypal-button');
</script>

Answer 1

To get the information on the server side, you can pass data.paymentID to your server side and use it to make a REST call to paypal: https://developer.paypal.com/docs/integration/direct/express-checkout/integration-jsv4/advanced-payments-api/show-payment-details/
To render multiple buttons you do need to call paypal.Button.render() multiple times, but if you need to you can do this in a for loop, or something.