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hyper-sdk-react

v3.0.41

Published

React native module for HyperSDK which enables payment orchestration via different dynamic modules. More details available at https://developer.juspay.in/v2.0/docs . Some part of module depends heavily on native functionalities are not updatable dynamical

Downloads

7,296

Readme

Hyper-SDK-React

React native module for HyperSDK which enables payment orchestration via different dynamic modules. More details available at Juspay Developer Docs for Express Checkout SDK and Payment Page SDK. Some part of module depends heavily on native functionalities are not updatable dynamically.

Installation

npm install hyper-sdk-react

Android

Add following maven url in the allProjects > repositories section of root(top) build.gradle:

maven { url "https://maven.juspay.in/jp-build-packages/hyper-sdk/" }

Add the clientId ext property in root(top) build.gradle:

buildscript {
    ....
    ext {
        ....
        clientId = "<clientId shared by Juspay team>"
        hyperSDKVersion = "2.1.25"
        ....
    }
    ....
}
  • You can also provide an override for base SDK version present in plugin (the newer version among both would be considered). - Optional
  • Exclude microSDKs provided with HyperSDK for given clientId by adding excludedMicroSDKs - Optional

iOS

Run the following command inside the ios folder of your react native project:

pod install

(Optional) Add the following property in package.json of your project before running pod install if you want to override the base SDK version present in the plugin (the newer version among both would be considered):

  {
    ....
    "scripts": {
      ....
    },
    "dependencies": {
      ....
    },
    "devDependencies": {
      ....
    },
    "hyperSdkIOSVersion": "2.1.39"
    ....
  }

Note: This version is just for explanatory purposes and may change in future. Contact Juspay support team for the latest SDK version.

Dynamic Assets iOS

Change the hyperSdkIOSVersion to 2.1.39 (This version is just for explanatory purposes and may change in future. Contact Juspay support team for the latest SDK version).

Add below post_install script in the Podfile

post_install do |installer|
 fuse_path = "./Pods/HyperSDK/Fuse.rb"
 clean_assets = false # Pass true to re-download all the assets
 if File.exist?(fuse_path)
   if system("ruby", fuse_path.to_s, clean_assets.to_s)
   end
 end
end

Place the MerchantConfig.txt file inside the folder where the Podfile is present. This file doesn't need to be added to the project. The content of the file should be as below

clientId = <clientId shared by Juspay Team>

Usage

Exposed APIs

type HyperSdkReactType = {
  HyperEvent: string;
  preFetch(data: string): void;
  createHyperServices(): void;
  initiate(data: string): void;
  process(data: string): void;
  processWithActivity(data: string): void;
  terminate(): void;
  onBackPressed(): boolean;
  isNull(): boolean;
  isInitialised(): Promise<boolean>;
  updateBaseViewController(): void;
};

const { HyperSdkReact } = NativeModules;

export default HyperSdkReact as HyperSdkReactType;

Import HyperSDK

import HyperSdkReact from 'hyper-sdk-react';

Step-0: PreFetch

To keep the SDK up to date with the latest changes, it is highly recommended to call preFetch as early as possible. It takes a stringified JSON as its argument.

HyperSdkReact.preFetch(JSON.stringify(preFetchPayload));

Step-1: Create HyperServices Object

This method creates an instance of HyperServices class in the React Bridge Module on which all the HyperSDK APIs / methods are triggered. It internally uses the current activity as an argument.

Note: This method is mandatory and is required to call any other subsequent methods from HyperSDK.

HyperSdkReact.createHyperServices();

Step-2: Initiate

This method should be called on the render of the host screen. This will boot up the SDK and start the Hyper engine. It takes a stringified JSON as its argument which will contain the base parameters for the entire session and remains static throughout one SDK instance lifetime.

Initiate is an asynchronous call and its result (whether success or failure) is provided in the Hyper Event listener, later discussed in step-4.

Note: It is highly recommended to initiate SDK from the order summary page (at least 5 seconds before opening your payment page) for seamless user experience.

HyperSdkReact.initiate(JSON.stringify(initiatePayload));

Step-3: Process

This API should be triggered for all operations required from HyperSDK. The operation may be related to:

  • Displaying payment options on your payment page
  • Performing a transaction
  • User's payment profile management

The result of the process call is provided in the Hyper Event listener, later discussed in step-4.

HyperSdkReact.process(JSON.stringify(processPayload));

If any of the react-native library is impacting the UI/UX, please use processWithActivity instead, which starts a new Activity for opening the Payment Page, isolated of react native.

HyperSdkReact.processWithActivity(JSON.stringify(processPayload));

Step-4: Listen to events from HyperSDK

Hyper SDK Native Module will be emitting all the relevant events to JS via RCTDeviceEventEmitter and JavaScript modules can then register to receive events by invoking addListener on the NativeEventEmitter class in the componentDidMount() method with the event name 'HyperEvent' (You can use the HyperSdkReact.HyperEvent as well). The listener will return a stringified JSON response (resp).

The following events should be handled here:

  • show_loader: To show a loader for the processing state.
  • hide_loader: To hide the previously shown loader.
  • initiate_result: Result of initiate done in step-2.
  • process_result: Result of the process operation done in step-3.

Note: The listener can be removed when the React component unmounts in componentWillUnmount() method.

 componentDidMount() {
   ...
   const eventEmitter = new NativeEventEmitter(NativeModules.HyperSdkReact);
   this.eventListener = eventEmitter.addListener(HyperSdkReact.HyperEvent, (resp) => {
     var data = JSON.parse(resp);
     var event: string = data.event || '';
     switch (event) {
       case 'show_loader':
         // show some loader here
         break;

       case 'hide_loader':
         // hide the loader
         break;

       case 'initiate_result':
         var payload = data.payload || {};
         console.log('initiate_result: ', payload);
         // merchant code
         ...
         break;

       case 'process_result':
         var payload = data.payload || {};
         console.log('process_result: ', payload);
         // merchant code
         ...
         break;

       default:
         console.log('Unknown Event', data);
     }
     ...
   });
   ...
 }

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

Step-5: Android Hardware Back-Press Handling

Hyper SDK internally uses an android fragment for opening the bank page and will need the control to hardware back press when the bank page is active. This can be done by invoking addEventListener on the BackHandler provided by React-Native.

If the blocking asynchronous call HyperSdkReact.onBackPressed() returns true, Hyper SDK will handle the back press, else merchant can handle it.

Note: HyperSdkReact.isNull() (refer here) can also be called before calling onBackPressed() to ensure that the HyperServices object is not null.

 componentDidMount() {
   ...
   BackHandler.addEventListener('hardwareBackPress', () => {
     return !HyperSdkReact.isNull() && HyperSdkReact.onBackPressed();
   });
   ...
 }

 componentWillUnmount() {
   ...
   BackHandler.removeEventListener('hardwareBackPress', () => null);
   ...
 }

Step-6: Android Permissions Handling

Hyper SDK needs to listen to the response of permissions asked to the user for handling auto SMS reading (wherever applicable). To do so, the merchant's activity should delegate the response to Hyper SDK once it is received from the user. This can be done by adding the following snippet in merchant's react activity (MainActivity):

  @Override
  public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
      if (HyperSdkReactModule.getPermissionRequestCodes().contains(requestCode)) {
          HyperSdkReactModule.onRequestPermissionsResult(requestCode, permissions, grantResults);
      } else {
          super.onRequestPermissionsResult(requestCode, permissions, grantResults);
      }
  }

Step-7: Terminate

This method shall be triggered when HyperSDK is no longer required.

HyperSdkReact.terminate();

Helper: Is Null

This is a helper method and can be used to check whether the HyperServices object is null at any particular moment. It is a blocking synchronous method and returns a boolean value.

var isNull: boolean = HyperSdkReact.isNull();
console.log('is HyperSDK null: ', isNull);

Optional: Is Initialised

This is a helper / optional method to check whether SDK has been initialised after step-2. It returns a JS Promise with a boolean value.

HyperSdkReact.isInitialised().then((init: boolean) => {
  console.log('isInitialised:', init);
});

Optional: Update Base ViewController - Only for iOS

This is an optional method to update the base view controller in case if any new view controller is presented over top view controller after the SDK initiation. This method should be called before making HyperSdkReact.process() call.

HyperSdkReact.updateBaseViewController();

Optional: Support for adding merchant views

This sections helps to attach custom views inside designated sections in the payment page. You will need to register the component to be attached under one of the following names, based on where the component is attached.

  1. JuspayHeaderAttached
  2. JuspayHeader
  3. JuspayFooter
  4. JuspayFooterAttached

You can follow the below syntax to attach the component.

HyperSdkReact.notifyAboutRegisterComponent(HyperSdkReact.JuspayHeaderAttached)
AppRegistry.registerComponent(HyperSdkReact.JuspayHeaderAttached, () => CustomComponent);

Please note component must be registered before calling process call of the sdk.

Note: In iOS we are not able to infer the height of the component being rendered. Therefore the component must fire HyperSdkReact.updateMerchantViewHeight(<section_name>, <height>);

For example

HyperSdkReact.updateMerchantViewHeight(HyperSdkReact.JuspayHeader, 200);

If your view dynamically computes height. Height can be obtained by adding the following property to the root of component registered

  onLayout={(event) => {
        const { height } = event.nativeEvent.layout;
        HyperSdkReact.updateMerchantViewHeight(HyperSdkReact.JuspayHeader, height);
      }}

Payload Structure

Please refer here for Express Checkout SDK and here for Payment Page SDK, for all request and response payload structure.

Contributing

See the contributing guide to learn how to contribute to the repository and the development workflow.

License

hyper-sdk-react is distributed under AGPL-3.0-only license.