Dynamic Amounts Using the Payment Intent Example on The Home Page

[StokleyO]

Hey everyone! I'm using the payment intent code available on the home page (link to code here), and was wondering how I can set dynamic payment amounts. Right now, it's automatically set to $20, but I'm setting up an app that enables users to load a balance to a digital wallet. Any help here would be greatly, greatly, GREATLY appreciated!! Thank you in advance