airwallex-payment-elements

airwallex-payment-elements

This universal component is a lightweight wrapper of airwallex checkout widget, which allow merchant site to integrate with airwallex checkout flow.

By adopt render props pattern, all interaction with the component base on component props, the props interface give merchant fully control on the checkout flow without violation the PCI compliance, also provide maximum flexibility on look and feels customize.

The component provide universal support for all FE framework, no matter Angular / React / VUE. Take advantages of Web Component, more details could be found W3C Web Component.

Staging Demo

https://staging-pacheckoutdemo.airwallex.com

Demo

https://demo-pacheckoutdemo.airwallex.com

Installation

Install airwallex-payment-elements package

yarn add airwallex-payment-elements

OR with NPM:

npm add airwallex-payment-elements

Or using UMD build:

WIP, will provide when CDN is ready

Getting Started

Initialize

import 'airwallex-payment-elements';

Render checkout component

Sign Up as Airwallex merchant and get merchant ID and Authentication

Reference: Airwallex Web APP

Generate Payment Intents

Reference: Airwallex API Doc

[OPTIONAL] Create customer info

Reference: Airwallex API Doc

Render the airwallex-elements on merchant page

  <airwallex-element
    gatewayBaseurl="https://staging-checkout.airwallex.com"
    intentId={intentId}
    clientSecret={clientSecret}
    countryOrRegion={countryOrRegionCode}
    currency={currency}
  />

Arguments in action

<airwallex-element /> is a web component customer element, which interacting with Airwallex UI FE to render the payment methods

gatewayBaseurl - [REQUIRED], is the domain url to loading airwallex checkout assets (html, javascript, css, fonts), it's also the server url for user interaction like submit checkout form.

Production: https://checkout.airwallex.com
Demo: https://demo-checkout.airwallex.com
Staging: https://staging-checkout.airwallex.com
Dev: https://dev-checkout.airwallex.com/

intentId - [REQUIRED], is payment intent id create by calling /api/v1/payment_intents/create

clientSecret - [REQUIRED], is your secret key get from your backend server when create payment intent, Airwallex payment api will use it to verify your true identity

customerId - [OPTIONAL], is using for known customer, whom we allow reuse token for fast payment, can be create by calling /api/v1/customer/create, for anonymous user just ignore this prop.

countryOrRegionCode - [REQUIRED], is two characters code Country Code

currency - [REQUIRED], is three characters code Currency Code

component - [OPTIONAL],allow value wechatPay if you only want to use WeChat Pay, ignore it will render all possible payment methods

enable3dSecure - [OPTIONAL], config 3d secure for card payment, using true or false to enable or disable

autoCapture - [OPTIONAL], config whether auto capture for card payment, using true or false to enable or disable

theme - [OPTIONAL], is looks and feels config STRING prop which give merchant interface to customize the checkout UI, below are support values:

interface ITheme {
  variant: 'outlined' | 'filled' | 'standard' | 'bootstrap';
  palette: {
    primary: Color; // https://material-ui.com/customization/color/#color
    secondary: Color; // https://material-ui.com/customization/color/#color
    error: Color; // https://material-ui.com/customization/color/#color
    background: {
      paper: string;
      default: string;
    };
    text: {
      primary: string;
      secondary: string;
      disabled: string;
      hint: string;
    };
  };
  typography: {
    htmlFontSize: number;
    fontSize: number;
    fontFamily: string;
    fontWeightLight: number;
    fontWeightRegular: number;
    fontWeightMedium: number;
    fontWeightBold: number;
    button: {
      textTransform: string;
      fontSize: number;
      fontWeight: number;
      lineHeight: number;
    };
  };
  shape: {
    borderRadius: number;
  };
  zIndex: {
    mobileStepper: number;
    appBar: number;
    drawer: number;
    modal: number;
    snackbar: number;
    tooltip: number;
  };
}

Default themes value as below:

{
  variant: 'outlined',
  palette: {
    primary: orange,
    secondary: grey,
    error: red,
    background: {
      paper: '#fff',
      default: '#fafafa'
    },
    text: {
      primary: '#2A2A2A',
      secondary: '#54545E',
      disabled: '#A9A9AE',
      hint: '#d1d2d5'
    }
  },
  typography: {
    htmlFontSize: 16,
    fontSize: 14,
    fontFamily: 'AxFFDIN'
    fontWeightLight: 300,
    fontWeightRegular: 400,
    fontWeightMedium: 500,
    fontWeightBold: 700,
    button: {
      textTransform: 'unset',
      fontSize: 16,
      fontWeight: 500,
      lineHeight: 2.15
    }
  },
  shape: {
    borderRadius: 4
  },
  zIndex: {
    mobileStepper: 1000,
    appBar: 1100,
    drawer: 1200,
    modal: 1300,
    snackbar: 1400,
    tooltip: 1500
  }
}

Before passing into the theme props, you must stringify(i.e. JSON.stringify()) it as string.

successUrl / cancelUrl / errorUrl - [OPTIONAL], urls for checkout redirection, any valid url works, the checkout component will append status to the url and do the redirection upon user checkout interaction. i.e

    successUrl="https://www.yourwebsite.com/success"
    cancelUrl="https://www.yourwebsite.com/cancel"
    errorUrl="https://www.yourwebsite.com/error"

EVENT IS NOT PASSING BY PROPS, WILL TRIGGER BY CHECKOUT FLOW.

To listen on checkout event, merchant page need to add event listener, below is an example:

const airwallexElement: any = document.querySelector('airwallex-element');
    airwallexElement.addEventListener('airwallex-checkout', ({ detail }: any) => {
      // Merchant business flow
    });

TODO

WIP Checkout UI can also listen on merchant event and take on actions.