Code 'link' | E Wallet

return result

def process_payment(idempotency_key, payment_details): # Check if this key has already been processed existing_transaction = database.get_transaction_by_key(idempotency_key) e wallet code

Common attacks involve social engineering to steal one-time passcodes (OTP) , which allow fraudsters to register your card on their own devices. return result def process_payment(idempotency_key

This wireless system enables devices to exchange data at short ranges, commonly used by Apple Pay and Google Pay. e wallet code