// Check if Apple Pay is available 
if (window.ApplePaySession && ApplePaySession.canMakePayments()) 
{ 
// Show Apple Pay button 
document.getElementById('apple-pay-button').style.display = 
'block'; 
} 
// Initialize Apple Pay session 
function startApplePay() { 
const request = { 
countryCode: 'US', 
currencyCode: 'USD', 
supportedNetworks: ['visa', 'masterCard', 'amex', 
'discover'], 
merchantCapabilities: ['supports3DS'], 
total: { 
label: 'Your Store Name', 
amount: '99.99' 
} 
}; 
const session = new ApplePaySession(3, request); 
// Handle merchant validation 
session.onvalidatemerchant = (event) => { 
// Send validation URL to your server 
fetch('/apple-pay/validate-merchant', { 
            method: 'POST', 
            body: JSON.stringify({ validationURL: 
event.validationURL }) 
        }) 
        .then(response => response.json()) 
        .then(merchantSession => { 
            session.completeMerchantValidation(merchantSession); 
        }); 
    }; 
     
    // Handle payment authorization 
    session.onpaymentauthorized = (event) => { 
        const payment = event.payment; 
         
        // Send payment token to your server 
        fetch('/process-apple-pay', { 
            method: 'POST', 
            body: JSON.stringify(payment.token) 
        }) 
        .then(response => response.json()) 
        .then(result => { 
            if (result.success) { 
                
session.completePayment(ApplePaySession.STATUS_SUCCESS); 
            } else { 
                
session.completePayment(ApplePaySession.STATUS_FAILURE); 
            } 
        }); 
    }; 
     
    session.begin(); 
}