function initPayPalButton() { paypal.Buttons({ style: { shape: 'rect', color: 'gold', layout: 'vertical', label: 'paypal', }, createOrder: function(data, actions) { return actions.order.create({ purchase_units: [{"amount":{"currency_code":"USD","value":1}}] }); }, onApprove: function(data, actions) { return actions.order.capture().then(function(details) { alert('Transaction completed by ' + details.payer.name.given_name + '!'); }); }, onError: function(err) { console.log(err); } }).render('#paypal-button-container'); } initPayPalButton();