Integrate Pesaswap SDK to your React Native App using Pesaswap-node
Use this guide to integrate Pesaswap SDK to your React Native app. You can use the following Demo App as a reference with your Pesaswap credentials to test the setup.
Demo App
Before following these steps, please configure your payment methods.
Requirements
- Android 5.0 (API level 21) and above
- Android Gradle Plugin 7.3.1
- Gradle 7.5.1+
- AndroidX
- iOS 12.4 and above
- CocoaPods
- npm
1. Setup the Server
Follow the Server Setup section.
2. Build Checkout Page on the Client
2.1 Install the Pesaswap-sdk-react-native Libraries
Install the packages and import them into your code:
$ yarn add @Pesaswap-/Pesaswap-sdk-react-native
$ npm install @Pesaswap-/Pesaswap-sdk-react-native
2.2 Peer Dependencies
Install the following dependencies:
yarn add react-native-code-push
yarn add react-native-gesture-handler
yarn add react-native-inappbrowser-reborn
yarn add react-native-safe-area-context
yarn add react-native-svg
yarn add @sentry/react-native
yarn add react-native-pager-view
yarn add react-native-screens
yarn add react-native-Pesaswap-kount
yarn add react-native-klarna-inapp-sdk
react-native-klarna-inapp-sdk, please remove it from the dependencies.
2.3 iOS Only
Run pod install in the iOS folder:
2.4 Android Only
In the Android folder inside the strings.xml file (android/app/src/main/res/values/strings.xml), add the below line:
<string name="CodePushDeploymentKey">PesaswapRNDemo</string>
android/settings.gradle file, add the following line to link react-native-code-push:
include(":react-native-code-push");
project(":react-native-code-push").projectDir = new File(
rootProject.projectDir,
"../node_modules/react-native-code-push/android/app"
);
android/app/src/main/AndroidManifest.xml), add these lines to the existing code:
<manifest xmlns:tools="http://schemas.android.com/tools">
<application
tools:replace="android:allowBackup">
<!-- Other existing elements in the <application> tag -->
</application>
</manifest>
2.5 Add HyperProvider to Your React Native App
Use HyperProvider to ensure that you stay PCI compliant by sending payment details directly to the Pesaswap server.
import { HyperProvider } from "@Pesaswap-/Pesaswap-sdk-react-native";
2.6 Use HyperProvider
To initialize Pesaswap in your React Native app, wrap your payment screen with the HyperProvider component. Only the API publishable key in publishableKey is required. The following example shows how to initialize Pesaswap using the HyperProvider component:
import { HyperProvider } from '@Pesaswap-/Pesaswap-sdk-react-native';
function App() {
return (
<HyperProvider publishableKey="YOUR_PUBLISHABLE_KEY">
{/* Your app code here */}
</HyperProvider>
);
}
3. Complete the Checkout on the Client
3.1 Import useHyper to Your Checkout Page
In the checkout of your app, import the useHyper() hook:
import { useHyper } from '@Pesaswap-/Pesaswap-sdk-react-native';
3.2 Fetch the PaymentIntent Client Secret
Make a network request to the backend endpoint you created in the previous step. The clientSecret returned by your endpoint is used to complete the payment:
const fetchPaymentParams = async () => {
const response = await fetch(`${API_URL}/create-payment`, {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({ items: [{ id: "xl-tshirt" }], country: "US" }),
});
const val = await response.json();
return val;
};
3.3 Collect Payment Details
Call initPaymentSession from the useHyper hook to customize the payment sheet, billing or shipping addresses, and initialize the payment sheet:
const { initPaymentSession, presentPaymentSheet } = useHyper();
const [paymentSession, setPaymentSession] = React.useState(null);
const initializePaymentSheet = async () => {
const { clientSecret } = await fetchPaymentParams();
const customAppearance = {
colors: {
light: {
primary: "#00FF00",
},
},
};
const params = {
merchantDisplayName: "Example, Inc.",
clientSecret: clientSecret,
appearance: customAppearance,
};
const paymentSession = await initPaymentSession(params);
setPaymentSession(() => paymentSession);
};
useEffect(() => {
initializePaymentSheet();
}, []);
3.4 Handle Payment Response
To display the Payment Sheet, integrate a “Pay Now” button within the checkout page, which, when clicked, invokes the presentPaymentSheet() function. This function will return an asynchronous payment response with various payment statuses:
const openPaymentSheet = async () => {
console.log("Payment Session Params --> ", paymentSession);
const status = await presentPaymentSheet(paymentSession);
console.log('presentPaymentSheet response: ', status);
const { error, paymentOption } = status;
if (error) {
switch (error.code) {
case 'cancelled':
console.log('cancelled', 'PaymentSheet was closed');
break;
case 'failed':
console.log('failed', 'Payment failed');
break;
default:
console.log('status not captured', 'Please check the integration');
break;
}
console.log(`Error code: ${error.code}`, error.message);
} else if (paymentOption) {
switch (paymentOption.label) {
case 'succeeded':
console.log('succeeded', 'Your order has succeeded');
break;
case 'requires_capture':
console.log('requires_capture', 'Your order requires capture');
break;
default:
console.log('status not captured', 'Please check the integration');
break;
}
} else {
console.log('Something went wrong', 'Please check the integration');
}
};
return (
<Screen>
<Button variant="primary" title="Checkout" onPress={openPaymentSheet} />
</Screen>
);
Please retrieve the payment status from the Pesaswap backend to get the terminal status of the payment. Do not rely solely on the status returned by the SDK, as it may not always reflect the final state of the transaction.
Congratulations!
Now that you have integrated the Pesaswap SDK into your React Native app, you can customize the payment sheet to match your app’s design and branding. 
