I have shopify store, i have implemented Gift Card Auto Fulfill app to generate gift vouchers for users to receive gift vouchers, now i am adding custom fields on single product page as name, email and gift voucher value, I need to save these values when doing checkout so that on placing the order , the gift voucher will be received to the mentioned email I have added on Add to Cart single product page.
Can we do that in shopify? If yes, then kindly elaborate.
Also, I have implemented Stripe gateway through code but i am unable to do proper checkout having issues in it.
You'd want to look at adding line item properties to the product, then pulling that data out later via your app.
If you are generating Gift Cards I assume this is a Plus store with access to the Gift Card API.