Google Pay (GPay business) Integration Using Google API Directly to wordpress

We have to integrate GPay using Google API. It should be integrated to woocommerce site in the checkout page as a payment method. The order details should be saved to the database and on tap it should be oprned in the Gpay app with the invoice amount. After payment it should be redirected to the thank you page.

Below is the google developer references steps for implementation..

https://developers.google.com/pay/api/web/guides/resources/demos
https://developers.google.com/pay/india/api/web/intro
https://youtu.be/kH0nafGhbww
https://www.youtube.com/watch?v=pZyGYUMZAeg&t=26s