iam have a work for you
see iam creating a web application using reactjs and nodejs
it is a ecommerce application the whole application is ready
but i need add 2 new features in that
1- coupon system
as a admin i can genrate coupon and as a customer they use that coupon in my website
second one in that u just need to make e wallet by which they can but product through that ewallet and also with my razorpay gateway the razorpay gateway is done but you just need to make ewallet and deduct that money if he buy something
plz let me know if u able to create that.