When user clicks on proceed to pay (we have 2 or 3 items to pay ) so based on the items selections we calculate total amount and can pass to paypal. So when user clicks on Proceed to Pay : What is the ideal way to integrate with Paypal ? as here the amount is veriable and button we want to cusomize and also after payment status success we need to return back to booking summary page by storing transaction ID in our database. my expectation is like this : upon proceed to check out paypal popup opens and user submits paypal form then paypal will do call back with transaction status and transaction ID based on that call our Backend api to store transaction details return to summary page.
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