This project is currently in beta and APIs are subject to change.

React Native Payments

Accept Payments with Apple Pay and Android Pay using the Payment Request API.

Features

• Simple. No more checkout forms.
• Effective. Faster checkouts that increase conversion.
• Future-proof. Use a W3C Standards API, supported by companies like Google, Firefox and others.
• Cross-platform. Share payments code between your iOS, Android, and web apps.
• Add-ons. Easily enable support for Stripe or Braintree via add-ons.

---

Table of Contents

• Installation
• Usage
• Testing Payments
• Apple Pay button
• Add-ons
• API
• Resources
• License

Installation

First, download the package:

$ yarn add react-native-payments

Second, link the native dependencies:

$ react-native link react-native-payments

Usage

• Setting up Apple Pay/Android Pay
• Importing the Library
• Initializing the Payment Request
• Displaying the Payment Request
• Aborting the Payment Request
• Requesting Contact Information
• Requesting a Shipping Address
• Processing Payments
• Dismissing the Payment Request

Setting up Apple Pay/Android Pay

Before you can start accepting payments in your App, you'll need to setup Apple Pay and/or Android Pay.

Apple Pay

1. Register as an Apple Developer
2. Obtain a merchant ID
3. Enable Apple Pay in your app

Apple has a documentation on how to do this in their Configuring your Environment guide.

Android Pay

1. Add Android Pay and Google Play Services to your dependencies
2. Enable Android Pay in your Manifest

Google has documentation on how to do this in their Setup Android Pay guide.

Settings on IOS

Importing the Library

Once Apple Pay is enabled in your app, jump into your app's entrypoint and make the PaymentRequest globally available to your app.

// index.ios.js
import {ApplePay} from 'react-native-payments'

Initializing the Payment Request

To initialize a Payment Request, you'll need to provide PaymentMethodData and PaymentDetails.

Payment Method Data

The Payment Method Data is where you defined the forms of payment that you accept. To enable Apple Pay, we'll define a supportedMethod of apple-pay. We're also required to pass a data object to configures Apple Pay. This is where we provide our merchant id, define the supported card types and the currency we'll be operating in.

const METHOD_DATA = [{
  supportedMethods: ['apple-pay'],
  data: {
    merchantIdentifier: 'merchant.com.your-app.namespace',
    supportedNetworks: ['visa', 'mastercard', 'amex'],
    countryCode: 'US',
    currencyCode: 'USD'
  }
}];

Payment Details

Payment Details is where define transaction details like display items, a total and optionally shipping options.

Google has excellent documentation for Defining Payment Details.

const DETAILS = {
  id: 'basic-example',
  displayItems: [
    {
      label: 'Movie Ticket',
      amount: { currency: 'USD', value: '15.00' }
    }
  ],
  total: {
    label: 'Merchant Name',
    amount: { currency: 'USD', value: '15.00' }
  }
};

Once you've defined your methodData and details, you're ready to initialize your Payment Request.

const paymentRequest = new PaymentRequest(METHOD_DATA, DETAILS);

Displaying the Payment Request

Now that you've setup your Payment Request, displaying it is as simple as calling the show method.

paymentRequest.show();

See Screenshots

Aborting the Payment Request

You can abort the Payment Request at any point by calling the abort method.

paymentRequest.abort();

Requesting Contact Information

Some apps may require contact information from a user. You can do so by providing a PaymentOptions as a third argument when initializing a Payment Request. Using Payment Options, you can request a contact name, phone number and/or email.

Requesting a Contact Name

Set requestPayerName to true to request a contact name.

const OPTIONS = {
  requestPayerName: true
};

See Screenshots

Requesting a Phone Number

Set requestPayerPhone to true to request a phone number.

const OPTIONS = {
  requestPayerPhone: true
};

See Screenshots

Requesting an Email Address

Set requestPayerEmail to true to request an email address.

const OPTIONS = {
  requestPayerEmail: true
};

See Screenshots

You can also request all three by setting them all to true.

const OPTIONS = {
  requestPayerName: true,
  requestPayerPhone: true,
  requestPayerEmail: true
};

Requesting a Shipping Address

Requesting a shipping address is done in three steps.

First, you'll need to set requestShipping to true within PaymentOptions.

const OPTIONS = {
  requestShipping: true
};

Second, you'll need to include shippingOptions in your Payment Details.

const DETAILS = {
  id: 'basic-example',
  displayItems: [
    {
      label: 'Movie Ticket',
      amount: { currency: 'USD', value: '15.00' }
    }
  ],
+ shippingOptions: [{
+   id: 'economy',
+   label: 'Economy Shipping',
+   amount: { currency: 'USD', value: '0.00' },
+   detail: 'Arrives in 3-5 days' // `detail` is specific to React Native Payments
+ }],
  total: {
    label: 'Merchant Name',
    amount: { currency: 'USD', value: '15.00' }
  }
};

Lastly, you'll need to register event listeners for when a user selects a shippingAddress and/or a shippingOption. In the callback each event, you'll need to provide new PaymentDetails that will update your PaymentRequest.

paymentRequest.addEventListener('shippingaddresschange', e => {
  const updatedDetails = getUpdatedDetailsForShippingAddress(paymentRequest.shippingAddress;

  e.updateWith(updatedDetails);
});

paymentRequest.addEventListener('shippingoptionchange', e => {
  const updatedDetails = getUpdatedDetailsForShippingOption(paymentRequest.shippingOption);

  e.updateWith(updatedDetails);
});

Processing Payments

Now that we know how to initialize, display, and dismiss a Payment Request, let's take a look at how to process payments.

When a user accepts to pay, PaymentRequest.show will resolve to a Payment Response.

paymentRequest.show()
  .then(paymentResponse => {
    // Your payment processing code goes here

    return processPayment(paymentResponse);
  });

There are two ways to process Apple Pay payments -- on your server or using a payment processor.

Processing Payments on Your Server

If you're equipped to process Apple Pay payments on your server, all you have to do is send the Payment Response data to your server.

⚠️ Note: When running Apple Pay on simulator, paymentData equals to null.

import { NativeModules } from 'react-native';

paymentRequest.show()
  .then(paymentResponse => {
    const { transactionIdentifier, paymentData } = paymentResponse.details;

    return fetch('...', {
      method: 'POST',
      body: {
        transactionIdentifier,
        paymentData
      }
    })
    .then(res => res.json())
    .then(successHandler)
    .catch(errorHandler)
  });

You can learn more about server-side decrypting of Payment Tokens on Apple's Payment Token Format Reference documentation.

Processing Payments with a Payment Processor

When using a payment processor, you'll receive a paymentToken field within the details of the PaymentResponse. Use this token to charge customers with your payment processor.

paymentRequest.show()
  .then(paymentResponse => {
    const { paymentToken } = paymentResponse.details;

    return fetch('...', {
      method: 'POST',
      body: {
        paymentToken
      }
    })
    .then(res => res.json())
    .then(successHandler)
    .catch(errorHandler);
  });

For a list of supported payment processors and how to enable them, see the Add-ons section.

Dismissing the Payment Request

Dismissing the Payment Request is as simple as calling the complete method on of the PaymentResponse.

paymentResponse.complete('success'); // Alternatively, you can call it with `fail` or `unknown`

Settings on Android

Enable Android Pay in your Manifest

To enable Google Pay in your app, you need to add the following Google Pay API meta-data element to the <application> element of your project's AndroidManifest.xml file.

<meta-data
    android:name="com.google.android.gms.wallet.api.enabled"
    android:value="true" />

Usage

import { GooglePay } from 'react-native-google-pay';

const allowedCardNetworks = ['VISA', 'MASTERCARD'];
const allowedCardAuthMethods = ['PAN_ONLY', 'CRYPTOGRAM_3DS'];

const requestData = {
  cardPaymentMethod: {
    tokenizationSpecification: {
      type: 'PAYMENT_GATEWAY',
      // stripe (see Example):
      gateway: 'stripe',
      gatewayMerchantId: '',
      stripe: {
        publishableKey: 'pk_test_TYooMQauvdEDq54NiTphI7jx',
        version: '2018-11-08',
      },
      // other:
      gateway: 'example',
      gatewayMerchantId: 'exampleGatewayMerchantId',
    },
    allowedCardNetworks,
    allowedCardAuthMethods,
  },
  transaction: {
    totalPrice: '10',
    totalPriceStatus: 'FINAL',
    currencyCode: 'USD',
  },
  merchantName: 'Example Merchant',
};

// Set the environment before the payment request
GooglePay.setEnvironment(GooglePay.ENVIRONMENT_TEST);

// Check if Google Pay is available
GooglePay.isReadyToPay(allowedCardNetworks, allowedCardAuthMethods)
  .then((ready) => {
    if (ready) {
      // Request payment token
      GooglePay.requestPayment(requestData)
        .then((token: string) => {
          // Send a token to your payment gateway
        })
        .catch((error) => console.log(error.code, error.message));
    }
  })

Testing Payments

Apple Pay

The sandbox environment is a great way to test offline implementation of Apple Pay for apps, websites, and point of sale systems. Apple offers detailed guide for setting up sandbox environment.

⚠️ Note: It is also important to test Apple Pay in your production environment. Real cards must be used in the production environment. Test cards will not work.

⚠️ Note: There are known differences when running Apple Pay on simulator and real device. Make sure you test Apple Pay on real device before going into production.

Google Pay Button

    import {GooglePayButton} from 'react-native-payments'

Apple Pay Button

Provides a button that is used either to trigger payments through Apple Pay or to prompt the user to set up a card. Detailed docs and examples

Add-ons

Here's a list of Payment Processors that you can enable via add-ons:

• Stripe
• Braintree

API

NativePayments

PaymentRequest

PaymentRequestUpdateEvent

PaymentResponse

Resources

Payment Request

• Introducing the Payment Request API
• Deep Dive into the Payment Request API
• W3C API Working Draft
• Web Payments
• The Future of Web Payments

Apple Pay

• Getting Started with Apple Pay
• Configuring your Environment
• Processing Payments
• Payment Token Format Reference

License

Licensed under the MIT License, Copyright © 2017, Naoufal Kadhom.

See LICENSE for more information.