pr-behavaior

<script>
    PaymentRequestBehavior = {

      listeners: {
        'show-payment-request': '_requestPayment',
      },

      _requestPayment: function(e, total) {
        var supportedInstruments = [{
          supportedMethods: [
            'amex', 'diners', 'discover', 'mastercard', 'visa'
          ]
        }];
        var formattedTotal = '' + total.toFixed(2);
        var details = {
          'total': {
            label: "Total due",
            amount: {'currency': 'USD', value: formattedTotal}
          },
          'items': [{
            'id': 'shipping',
            'label': 'Free standard shipping',
            'amount': {'currency': 'USD', 'value': '0.00'}
          }],
          'shippingOptions': [{
            'id': 'standardShipping',
            'label': 'Free standard shipping',
            'amount': {'currency': 'USD', 'value': '0.00'},
            selected: true
          }]
        };
        var options = {
          'requestShipping': true
        };
        var self = this;
        try {
          var request = new PaymentRequest(
              supportedInstruments, details, options);
          request.show().then(function(instrumentResponse) {
            fetch('/data/sample_success_response.json', {
              method: 'POST',
              headers: new Headers({'Content-Type': 'application/json'}),
              body: JSON.stringify({
                cart: details,
                shippingAddress: request.shippingAddress,
                shippingOption: request.shippingOption,
                paymentMethodName: instrumentResponse.methodName,
                paymentDetails: instrumentResponse.details})
            }).then(function(buy) {
                if (buy.success) {
                  buy.json().then(function(buyJson) {
                    self._complete(instrumentResponse, buyJson.success, buyJson.msg);
                  }).catch(function(err) {self._complete(instrumentResponse, false, err.message);});
                } else {
                  self._complete(instrumentResponse, false, 'Could not post to /buy');
                }
            }).catch(function(err) {self._complete(instrumentResponse, false, err.message);});
          }).catch(function(err) {
            //alert(err);
            //self._pushState('error');
          });
        } catch(e) {
          //alert(e);
          //self._pushState('error');
        }
      },
      _complete: function(instrument, result, msg) {
        var self = this;
        instrument.complete("success").then(function() {

          if (true) {
            window.location = "/checkout/success"
            //self._pushState('success');
            //self._reset();
            self.fire('clear-cart');
          } else {
            window.location = "checkout/error";
            //self._pushState('error');
          }
        }).catch(function(error) {
          self._pushState('error');
        });
      }

    };
</script>