React Native Payworks Integration

This is a React Native library that wraps the Payworks native library for interfacing with Miura hardware readers.

The initial release supports iOS and Stripe only. Android support is TBD. Pull requests are welcome.

Usage

• npm install react-native-payworks --save
• react-native link
• Import the module in a RN app: import ReactNativePayworks from 'react-native-payworks';
• Platform-specific dependencies are listed under the Example section.

API

All available methods are promise-based:

• transaction(paramObj) -- Initiate a charge on the card reader. Upon completion of a transaction, the promise resolves with a status key. The transaction method accepts an object as the first parameter containing the following fields:

  • providerMode: MPProviderMode: LIVE=1, TEST=2, MOCK=3, JUNGLE=4, LIVE_FIXED=5, TEST_FIXED=6.
  • merchantIdentifier: Payworks-generated merchant ID.
  • merchantSecretKey: Payworks-generated merchant secret key.
  • chargeWithAmount: Amount to charge.
  • currency: Currency to use for the charge (22 indicates USD).
  • optionals: Additional data to pass to Payworks such as applicationFee. Refer to the Payworks Transactions with Stripe documentation for details.

• submitSignature(image) -- Send a captured signature when a PayworksTransactionEvent event contains the action key with value MPTransactionActionCustomerSignature. The image parameter is anything supported by RCTConvert.

• cancelSignature() -- Abort the transaction.

Events

Events are emitted by NativeAppEventEmitter under the name PayworksTransactionEvent. During the transaction, the response payload contains a details key. If an action is required (e.g. signature), the action key will be populated.

Example code snippet

import ReactNativePayworks from 'react-native-payworks';
import { NativeAppEventEmitter } from 'react-native';

// Initiate a transaction on the card reader.
ReactNativePayworks.transaction({
  merchantIdentifier: "myMerchantId",
  merchantSecretKey: "myMerchantKey",
  chargeWithAmount: 10,
  currency: 22, //USD
  optionals: {
    subject: "My purchase",
    customIdentifier: "purchase_id_123",
    applicationFee: 0.99,
    metadata: {
      customField1: "test1",
      customField2: "test2",
    }
  }
}).then(
  (transaction) =>{
    console.log("PayworksNative transaction completed:" + JSON.stringify(transaction));
  });

componentWillMount() {
  // Listen for events from the card reader.
  this.payworksEventSub = NativeAppEventEmitter.addListener(
    'PayworksTransactionEvent',
    (data) => {
      if (data.details) {
        console.log("PayworksNative ongoing transaction details: " + JSON.stringify(data.details));
      }
      else if (data.action && data.action === "MPTransactionActionCustomerSignature") {
        console.log("Capture signature now.");
        ReactNativePayworks.submitSignature(capturedSignatureImage); // you supply capturedSignatureImage
      }
    }
  );
}

componentWillUnmount() {
  this.payworksEventSub.remove();
}

Example

The example/ directory has a sample project using the ReactNativePayworks library.

• Install npm dependencies npm install
• Install React Native CLI globally sudo npm install -g react-native-cli
• react-native link

iOS dependencies

• Xcode
• Install Cocoapods sudo gem install cocoapods
• Install pods cd example/ios && pod install && cd ../..
• Open example/ios/RNPDemo.xcworkspace in Xcode.
• Add the necessary protocols to the Xcode project (Payworks instructions).
• Build and run on a real iOS device (card reader should be paired with the iDevice).

Android Dependencies

• ...

ToDo

• Payworks iOS library is built without Bitcode, requiring the RN app to be built without it.
• Update example project for Android.
• Tests

License

React Native Payworks is Apache Licensed.