initPaypalIntegration(requestAuthFlow){
        let paymentPromise = axios.create({
          baseURL: '/',
          headers: {'X-Auth-Basic': window.appConfig.X_AUTH_BASIC_TOKEN}
        });
        return paymentPromise.get('/api/braintree/token')
          .then((response) => {
            if (response.data.error === true) {
              this.isLoading = false;
              this.$Progress.fail();
              this.paymentInProgress = false;
              this.$alert.danger({message: "Braintree token request failed"});
              throw new Error("Braintree token request failed");
            }

            return new Promise((resolve, reject) => {
              braintree.setup(response.data.clientToken, 'custom', {
                paypal: {
                  headless: true,
                  singleUse: false,
                  onAuthorizationDismissed: () => {
                    this.isLoading = false;
                    this.paymentInProgress = false;
                    this.$Progress.finish();
                  }
                },
                onReady: (integration) => {
                  this.paypalIntegration = integration;
                  this.isLoading = false;
                  this.$Progress.finish();
                },
                onPaymentMethodReceived: (payload) => {
                  resolve({gateway: "braintree", nonce: payload.nonce});
                }
              });
            });
          })
          .then(tokenizedCard => {
            if(!requestAuthFlow) {
              this.$Progress.start();
              this.performCardPayment(tokenizedCard.nonce, tokenizedCard.gateway, "paypal");
            }
            return tokenizedCard;
          }).catch(e => console.error(e));
      },