Smile ID Expo SDK

Smile ID provides premier solutions for Real Time Digital KYC, Identity Verification, User Onboarding, and User Authentication across Africa.

If you haven’t already, sign up for a free Smile ID account, which comes with Sandbox access.

Please see CHANGELOG.md or Releases for the most recent version and release notes.

Getting Started

Full documentation is available at Smile ID Documentation

0. Requirements

• Node.js >=18.0
• React Native >=0.79
• A smile_config.json file from Smile ID Portal
• See: Android Requirements for Android specific requirements.
• See: iOS Requirements for iOS specific requirements.

1. Dependency

For Expo Managed Projects

Install the Smile ID Expo SDK:

# Using npm
npm install @smile_identity/react-native-expo

# Using yarn
yarn install @smile_identity/react-native-expo

For Bare React Native Projects

1. Install Expo Modules Support (if not already set up):

   npx install-expo-modules@latest

   This will configure your bare React Native project with the required Gradle and Pod settings to support Expo modules.

2. Install the Smile ID Expo SDK:

    # Using npm
   npm install @smile_identity/react-native-expo
   
    # Using yarn
    yarn install @smile_identity/react-native-expo

3. Rebuild Your Project:

   cd sample-react-native/ios
   pod-install
   cd ..
    # For Android
   npx react-native run-android
   # or for iOS
   npx react-native run-ios

⚠️ Important Note:

Ensure that your React Native and Metro versions match the versions used by smile_identity/react-native-expo. You can override them to use different versions, but make sure both React Native and Metro are on the same version. Mismatches can cause native views from smile_identity/react-native-expo to fail to render and throw runtime errors.

2. SDK Initialization

The Smile ID Expo SDK offers three flexible initialization methods to suit different development needs.

import { initialize, ExpoConfig } from 'react-native-expo';

Option 1: Configuration File (Recommended)

This method uses a smile_config.json file containing your configuration settings.

Setup Requirements:

• iOS: Add smile_config.json to your copy bundle phases in your iOS target
• Android: Place smile_config.json in your assets folder

// Initialize using configuration file
initialize(true);

Option 2: Programmatic Configuration

// Create configuration object with your Smile ID portal credentials
const config = new SmileConfig(
  'your_partner_id',              // Partner ID from Smile ID portal
  'your_auth_token',              // Authentication token
  'https://prod-lambda-url.com',  // Production lambda URL
  'https://test-lambda-url.com'   // Test lambda URL
);

// Initialize with configuration object
initialize(true, true, config);

Option 3: Configuration with API Key

// Use the same config object from Option 2
const config = new SmileConfig(
  'your_partner_id',
  'your_auth_token', 
  'https://prod-lambda-url.com',
  'https://test-lambda-url.com'
);

// Initialize with configuration and API key
initialize(true, true, config, 'YOUR_API_KEY');

3. Products

The SDK supports all Smile ID products with a simple, integrated component approach.This implementation works the same way for both Expo projects and bare React Native projects.

Configuration Setup

First, create a document verification params object:

import { DocumentVerificationParams } from 'react-native-expo';

const documentVerificationParams: DocumentVerificationParams = {
   userId: 'user123',
   jobId: 'job456',
   countryCode: 'NG',
   allowNewEnroll: false,
   documentType: 'PASSPORT',
   idAspectRatio: 1.414,
   bypassSelfieCaptureWithFile: 'your_selfie_image_path',
   enableAutoCapture: true,
   captureBothSides: false,
   allowAgentMode: true,
   showInstructions: true,
   showAttribution: true,
   allowGalleryUpload: true,
   skipApiSubmission: false,
   useStrictMode: false,
   extraPartnerParams: {
      'custom_param_1': 'value1',
      'custom_param_2': 'value2'
   }
};

Implementation

Integrate the document verification component into your React Native view:

import { SmileIDDocumentVerificationView } from 'react-native-expo';

// Component implementation
<SmileIDDocumentVerificationView 
  style={styles.nativeView}
  params={documentVerificationParams}
  onResult={handleDocumentVerificationResult}
  onError={handleDocumentVerificationError}
/>

Event Handlers

Implement the required callback functions to handle verification results:

// Handle successful verification
const handleSuccessResult = (result: DocumentVerificationResult) => {
  console.log('Document verification successful:', result);
  // Process the verification result
};

// Handle verification errors
const handleError = (error: DocumentVerificationError) => {
  console.error('Document verification failed:', error);
  // Handle error appropriately
};

Component Props:

• style: React Native StyleSheet for component styling
• params: Document verification parameters object
• onResult: Callback function for successful verification
• onError: Callback function for error handling

This implementation provides a complete document verification flow with comprehensive error handling and result processing capabilities. Other Smile ID products can be integrated in a similar way using the provided components and configuration objects.

Getting Help

For detailed documentation, please visit Smile ID Documentation

If you require further assistance, you can file a support ticket or contact us

Contributing

Bug reports and Pull Requests are welcomed. Please see CONTRIBUTING.md

License

MIT License