3DS React Native SDK

The Basis Theory 3DS React Native SDK.

Installation

Using Node Package Manager

npm install @basis-theory/react-native-threeds

Using Yarn

yarn add @basis-theory/react-native-threeds

Usage

The SDK offers three strategies. They share the same flow: tokenize the card, create a 3DS session, and let your backend authenticate it with your private API key.

The native strategies (Bridge and TurboModule) need a development build (expo prebuild or a bare React Native app). Expo Go can only use the WebView.

The examples below take a tokenId for a card token you already created, for example with React Native Elements.

WebView

Wrap your app with BasisTheory3dsProvider and use useBasisTheory3ds in any component below it. The provider renders the challenge as an overlay on top of its children, so mount it at the root of your app.

import { Button } from 'react-native';
import {
  BasisTheory3dsProvider,
  useBasisTheory3ds,
} from '@basis-theory/react-native-threeds';

const App = () => (
  <BasisTheory3dsProvider apiKey="<PUBLIC_API_KEY>">
    <Checkout tokenId="<TOKEN_ID>" />
  </BasisTheory3dsProvider>
);

const Checkout = ({ tokenId }: { tokenId: string }) => {
  const { createSession, startChallenge } = useBasisTheory3ds();

  const pay = async () => {
    const session = await createSession({ tokenId });

    // Your backend authenticates the session with your private API key.
    const authentication = await yourBackend.authenticate(session.id);

    if (authentication.authentication_status_code === 'C') {
      await startChallenge({
        sessionId: session.id,
        acsChallengeUrl: authentication.acs_challenge_url,
        acsTransactionId: authentication.acs_transaction_id,
        threeDSVersion: authentication.threeds_version,
      });
    }
  };

  return <Button title="Pay" onPress={pay} />;
};

Enabling native 3DS

Native 3DS is off by default, so WebView-only apps build exactly as before: no native code, no extra SDKs, no extra setup. To enable it, add this to your app's package.json:

{
  "@basis-theory/react-native-threeds": {
    "native": true
  }
}

Then rebuild the app.

• iOS: run pod install. It downloads Ravelin's 3DS SDK, which the native integration uses. Requires iOS 15 or later.

• Android: Ravelin's 3DS SDK needs two changes in your app module that a library can't make for you: core library desugaring, and excluding a META-INF file that Ravelin's okhttp dependency and AndroidX both ship.

  • Expo (expo prebuild): add the config plugin to app.json and it adds both on every prebuild:

    { "expo": { "plugins": ["@basis-theory/react-native-threeds"] } }
    

  • Bare React Native, or Expo with a committed android/: add these lines to android/app/build.gradle:

    android {
        compileOptions {
            coreLibraryDesugaringEnabled true
        }
        packagingOptions {
            resources {
                excludes += "META-INF/versions/9/OSGI-INF/MANIFEST.MF"
            }
        }
    }
    
    dependencies {
        coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.5'
    }
    

  The library adds Ravelin's Maven repository to your build automatically. If your settings.gradle sets repositoriesMode to PREFER_SETTINGS or FAIL_ON_PROJECT_REPOS, Gradle ignores or rejects that repository, so add https://maven.ravelin.com/public/repositories/threeds2service/ to dependencyResolutionManagement.repositories in settings.gradle instead.

Only enable native if you use BasisTheoryThreeDS or BasisTheoryThreeDSStrategies. Desugaring on its own is harmless in a WebView-only app: it adds Google's desugar_jdk_libs to the build and doesn't link any native 3DS code.

Native

BasisTheoryThreeDS uses the TurboModule on iOS when your build compiled it, and the Bridge everywhere else. No provider is needed. The native SDK calls your authenticationEndpoint with the session ID and, if the bank requires a challenge, presents it on top of your app.

import { useEffect, useState } from 'react';
import { Button } from 'react-native';
import { BasisTheoryThreeDS } from '@basis-theory/react-native-threeds';

const Checkout = ({ tokenId }: { tokenId: string }) => {
  const [ready, setReady] = useState(false);

  useEffect(() => {
    BasisTheoryThreeDS.configure({
      apiKey: '<PUBLIC_API_KEY>',
      // Your backend: receives the session ID and authenticates it with your private API key.
      authenticationEndpoint: 'https://your-backend.example.com/3ds/authenticate',
    }).then(() => setReady(true));
  }, []);

  const pay = async () => {
    const session = await BasisTheoryThreeDS.createSession({ tokenId });
    const result = await BasisTheoryThreeDS.startAuthentication(session.id);
    // result.status: 'successful' | 'attempted' | 'failed' | 'unavailable' | 'rejected'
    //   | 'decoupled_challenge' | 'informational'
  };

  return <Button title="Pay" disabled={!ready} onPress={pay} />;
};

A failed or cancelled challenge resolves with status: 'failed' and the reason in result.details. decoupled_challenge means the issuer authenticates outside your app: subscribe to the 3ds.session.decoupled-challenge-notification webhook to learn when it completes, then get the outcome from your backend with Get Challenge Result; informational means authentication wasn't requested. The promise only rejects on configuration, transport, or SDK errors.

To force one strategy, use BasisTheoryThreeDSStrategies.ios.bridge, BasisTheoryThreeDSStrategies.ios.turboModule, or BasisTheoryThreeDSStrategies.android.bridge. They expose the same methods. ios.turboModule needs a build with the new architecture; check with isThreeDSTurboModuleAvailable().

Choosing the native strategy

The Bridge is always compiled. The TurboModule is added on iOS builds with the new architecture:

• iOS: on React Native 0.82 and later, the TurboModule is always compiled. On 0.81, newArchEnabled chooses: in app.json for Expo, or in ios/Podfile.properties.json for bare apps (or RCT_NEW_ARCH_ENABLED=1 pod install). true compiles the TurboModule alongside the Bridge, and false compiles only the Bridge. Run pod install again after changing it.
• Android: nothing to configure. Only the Bridge is compiled; the Android TurboModule isn't supported in this package.

Tested with React Native 0.81.5 (see example/).

Documentation

For a complete list of endpoints and examples, please refer to our official documentation.

Contributing

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