Pay button + checkout: open specific page after payment was successful

Ask the community
,
2

Did you read the Wix Pay API and Wix Pay Backend API sections as there are code examples there that can help you.
https://www.wix.com/corvid/reference/wix-pay.html
https://www.wix.com/corvid/reference/wix-site-backend.html

Along with the Thank You Page API itself.
https://www.wix.com/corvid/reference/$w.ThankYouPage.html

https://www.wix.com/corvid/reference/wix-pay.html#startPayment

Start a payment on button click with a custom thank you page

/**************************
 * backend code - pay.jsw *
 **************************/

import wixPay from 'wix-pay-backend';

export function createMyPayment() {
  return wixPay.createPayment({
    items: [ {
      name: "Product Name",
      price: 9.99
    } ],
    amount: 9.99
  } );
}

/********************
 * client-side code *
 ********************/

import {createMyPayment} from 'backend/pay';
import wixPay from 'wix-pay';
import wixWindow from 'wix-window';

export function myButton_click(event, $w) {
  createMyPayment()
    .then( (payment) => {
      wixPay.startPayment(payment.id, {"showThankYouPage": false})
        .then( (result) => {
          if (result.status === "Successful") {
            wixWindow.openLightbox("Success Box");
          } else if (result.status === "Pending") {
            wixWindow.openLightbox("Pending Box");
          }
      } );
    } );
}