React Native

Launch Dojah’s verification flow in a React Native app — one codebase for iOS and Android. There are two packages: one for bare React Native CLI projects and one for Expo projects.

Mobile SDKs launch by WidgetID — you design the flow in EasyOnboard and its WidgetID identifies it. See Choosing an SDK.

Pick your package

Your project	Package	Launch with
React Native CLI (bare)	`dojah-kyc-sdk-react_native`	`launchDojahKyc()`
Expo	`dojah-kyc-sdk-react-expo`	`DojahKycSdk.launch()`

Both packages contain native code, so the flow cannot run in Expo Go. Expo projects need a development build — either from EAS Build or from a local npx expo run:ios / run:android.

Requirements are the same either way: iOS 14+ and Android SDK 21+.

React Native CLI

Install

Terminal

npm install dojah-kyc-sdk-react_native
# or
yarn add dojah-kyc-sdk-react_native

iOS setup

Add the Dojah pods to your app target in ios/Podfile, then install them:

ios/Podfile

target 'YourApp' do
  # ...
  pod 'Realm', '~> 10.52.2', :modular_headers => true
  pod 'DojahWidget', :git => 'https://github.com/dojah-inc/sdk-swift.git', :branch => 'pod-package'
end

Terminal

cd ios && pod install

Add the usage descriptions your flow needs to Info.plist: NSCameraUsageDescription, NSMicrophoneUsageDescription (video), and NSLocationWhenInUseUsageDescription (address/location checks).

Wrap your root view in a UINavigationController

The SDK presents itself from a navigation controller, so your root view must be inside one. In AppDelegate.mm:

AppDelegate.mm

#import <React/RCTBridge.h>
#import <React/RCTRootView.h>

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];

  RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
                                                   moduleName:@"YourApp"
                                            initialProperties:nil];

  UIViewController *rootViewController = [UIViewController new];
  rootViewController.view = rootView;

  UINavigationController *navigationController =
      [[UINavigationController alloc] initWithRootViewController:rootViewController];

  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
  self.window.rootViewController = navigationController;
  [self.window makeKeyAndVisible];

  return YES;
}

Replace @"YourApp" with your app’s registered module name.

Android setup

Add JitPack to your repositories — in android/build.gradle or android/settings.gradle:

android/build.gradle

allprojects {
  repositories {
    maven { url "https://jitpack.io" }
  }
}

Permissions ship with the package, so there’s nothing to add to your manifest.

Launch the flow

App.js

import { launchDojahKyc } from 'dojah-kyc-sdk-react_native'

launchDojahKyc(
  "your_widget_id",   // required
  "DJ-123456",        // optional reference ID
  "user@email.com"     // optional email
)

Pass null for the reference ID and email if you aren’t using them.

Expo

Install

Terminal

npx expo install dojah-kyc-sdk-react-expo expo-build-properties

Configure app.json

Add the Dojah config plugin, the iOS usage descriptions, and the extra pods the native SDK needs:

app.json

{
  "expo": {
    "ios": {
      "infoPlist": {
        "NSCameraUsageDescription": "We use the camera to capture your ID and selfie.",
        "NSMicrophoneUsageDescription": "We use the microphone to record liveness videos.",
        "NSPhotoLibraryUsageDescription": "We use your photo library to upload documents.",
        "NSLocationWhenInUseUsageDescription": "We use your location to verify your address."
      }
    },
    "plugins": [
      "dojah-kyc-sdk-react-expo",
      [
        "expo-build-properties",
        {
          "android": {
            "compileSdkVersion": 36,
            "targetSdkVersion": 36,
            "buildToolsVersion": "36.0.0"
          },
          "ios": {
            "deploymentTarget": "15.1",
            "extraPods": [
              { "name": "Realm", "version": "~> 10.52.2", "modular_headers": true },
              {
                "name": "DojahWidget",
                "git": "https://github.com/dojah-inc/sdk-swift.git",
                "branch": "pod-package"
              }
            ]
          }
        }
      ]
    ]
  }
}

The Dojah config plugin already raises compileSdkVersion, targetSdkVersion, buildToolsVersion, the Android Gradle Plugin (8.9.1+) and the Gradle wrapper during prebuild — it never lowers values you set higher. The expo-build-properties Android block above just pins them explicitly.

Then generate the native projects:

Terminal

npx expo prebuild

Skip this step if you build with EAS and don’t keep ios/ and android/ in your repo — EAS runs prebuild on the build worker for you.

Launch the flow

DojahKycSdk.launch() returns a promise that resolves to the flow’s exit status:

App.js

import DojahKycSdk from 'dojah-kyc-sdk-react-expo'

const status = await DojahKycSdk.launch(
  "your_widget_id",   // required
  "DJ-123456",        // optional reference ID
  "user@email.com",    // optional email
  {
    userData: { firstName: "John", lastName: "Doe", dob: "1990-01-01" },
    govData: { bvn: "", nin: "" },
    metadata: { user_id: "121" },
  }
)

switch (status) {
  case 'approved': break  // all steps completed
  case 'pending':  break  // awaiting review
  case 'failed':   break  // a check did not pass
  case 'closed':   break  // user exited the flow
}

The optional fourth argument also accepts govId, location, businessData, and address.

Don’t trust the client for the final decision. approved means the user finished the flow, not that they passed every check. Confirm the outcome server-side with the reference_id — via Get verification or a webhook — before granting access.

Build with EAS (no Xcode required)

EAS Build compiles your app on Expo’s hosted macOS and Linux workers. That means you can produce an installable — and store-ready — iOS build from Windows or Linux without a Mac or a local Xcode install. It’s the recommended path for Expo projects using the Dojah SDK, since the SDK’s native code rules out Expo Go.

Install the tooling

Terminal

npm install -g eas-cli
npx expo install expo-dev-client
eas login

expo-dev-client is what makes a custom build usable as a development client — you keep fast refresh and the dev menu while running your own native code.

Create your build profiles

Generate eas.json, then define the profiles you need:

Terminal

eas build:configure

eas.json

{
  "build": {
    "development": {
      "developmentClient": true,
      "distribution": "internal"
    },
    "ios-simulator": {
      "extends": "development",
      "ios": { "simulator": true }
    },
    "production": {
      "autoIncrement": true,
      "ios": { "resourceClass": "large" }
    }
  },
  "submit": { "production": {} }
}

Use ios-simulator when you just want to run the flow on an iOS Simulator — those builds need no Apple Developer account. The development profile produces a device build, which does. resourceClass: "large" is optional; it speeds up the long CocoaPods step (Realm plus the Dojah pod) and isn’t available on the free plan.

Terminal

eas device:create

This registers a device UDID with your Apple team so the ad hoc provisioning profile covers it. Skip it for simulator builds.

Check what EAS will build from

EAS runs npx expo prebuild on the worker, so everything in the app.json plugin block above is applied there — you don’t need to commit native folders.If you have committed ios/ and android/, EAS uses them as-is and skips prebuild. In that case run npx expo prebuild --clean locally and commit the result whenever you change your Dojah or build-properties config.

Run the build

Terminal

# iOS, installable on registered devices
eas build --platform ios --profile development

# iOS Simulator build (.app)
eas build --platform ios --profile ios-simulator

# Android .apk for devices and emulators
eas build --platform android --profile development

On the first iOS build, EAS offers to generate and store your distribution certificate and provisioning profile — accept it, or supply your own credentials. Build logs stream in the terminal and stay available on your project’s page at expo.dev.

Install it and start developing

When the build finishes, the CLI prompts to install it on a connected device or a running simulator. Then start the bundler:

Terminal

npx expo start --dev-client

Your app now launches the real Dojah flow. JavaScript changes reload instantly — you only rebuild when native dependencies change.

Ship to the stores

Terminal

eas build --platform ios --profile production
eas submit --platform ios --latest

eas submit uploads the binary to App Store Connect (or Google Play with --platform android) from the same machine — again, no Xcode or Transporter needed.

Native changes need a new build. eas update ships JavaScript over the air only. Installing or upgrading dojah-kyc-sdk-react-expo, or editing the plugin config, always requires a rebuild.

ProGuard / R8 rules for Android release builds

EAS production builds run R8 minification. If you’ve enabled shrinking, add keep rules or the SDK will fail at runtime with ClassNotFoundException, NoSuchMethodError, or a blank WebView. In Expo, set them through expo-build-properties — no proguard-rules.pro file needed:

app.config.ts

android: {
  enableProguardInReleaseBuilds: true,
  enableShrinkResourcesInReleaseBuilds: true,
  extraProguardRules: [
    '-keep class com.dojah.** { *; }',
    '-keep class com.dojah_inc.** { *; }',
    '-keepclassmembers class com.dojah.** { *; }',
    '-dontwarn com.dojah.**',
    '-keepclassmembers class * { @android.webkit.JavascriptInterface <methods>; }',
    '-keepattributes JavascriptInterface',
    '-keepattributes Signature,InnerClasses,EnclosingMethod',
    '-keepattributes RuntimeVisibleAnnotations,RuntimeVisibleParameterAnnotations',
    '-keepclassmembers,allowshrinking,allowobfuscation interface * { @retrofit2.http.* <methods>; }',
    '-if interface * { @retrofit2.http.* <methods>; }',
    '-keep,allowobfuscation interface <1>',
    '-keep,allowobfuscation,allowshrinking interface retrofit2.Call',
    '-keep,allowobfuscation,allowshrinking class retrofit2.Response',
    '-keep class com.google.gson.** { *; }',
    '-keep public class * implements com.bumptech.glide.module.GlideModule',
    '-dontwarn okhttp3.**',
    '-dontwarn okio.**',
  ].join('\n'),
}

Bare CLI projects add the same rules to android/app/proguard-rules.pro instead.

Troubleshooting EAS builds

CocoaPods can't find DojahWidget, or picks up a stale version

The DojahWidget pod is fetched from a Git branch, and EAS caches it between builds. Force a fresh checkout:

Terminal

eas build --platform ios --profile development --clear-cache

Android build fails at :app:checkDebugAarMetadata

The error mentions compiling against API 36 or needing AGP 8.9.1+. Make sure "dojah-kyc-sdk-react-expo" is listed in your plugins array — the plugin raises those versions during prebuild. If you keep native folders in the repo, re-run npx expo prebuild --clean and commit.

iOS build fails on the deployment target

The native SDK requires iOS 14 or later. Set ios.deploymentTarget in the expo-build-properties plugin config ("15.1" is a safe value for recent Expo SDKs) and rebuild.

The camera or microphone screen crashes on iOS

A usage description is missing. Every permission your flow touches needs an infoPlist entry in app.json — iOS terminates the app when one is absent.

The flow is blank in a release build but fine in development

Almost always R8 stripping the SDK. Add the ProGuard rules above. To confirm the cause quickly, temporarily disable shrinking and rebuild.

WebView fallback

If you need a UI the native launcher doesn’t provide, render the hosted flow in a WebView:

Verify.jsx

<WebView
  originWhitelist={['*']}
  source={{ uri: 'https://identity.dojah.io?widget_id=your_widget_id' }}
  allowsInlineMediaPlayback
  mediaPlaybackRequiresUserAction={false}
  startInLoadingState
  javaScriptEnabled
/>

You can prefill the flow with query parameters such as user_data[first_name], user_data[email], user_data[dob], and metadata[user_id].

Resources

React Native CLI

npm — dojah-kyc-sdk-react_native
GitHub — dojah-inc/dojah-react-native-sdk (example app)

Expo

npm — dojah-kyc-sdk-react-expo
GitHub — dojah-inc/dojah_kyc_sdk_rn_expo (example app)
Expo — EAS Build documentation · eas.json reference

Underlying native SDKs

Get started

Core concepts

API Endpoints

Widget SDKs

API clients

Pick your package

React Native CLI

Install

iOS setup

Android setup

Launch the flow

Expo

Install

Configure app.json

Launch the flow

Build with EAS (no Xcode required)

ProGuard / R8 rules for Android release builds

Troubleshooting EAS builds

WebView fallback

Resources

​Pick your package

​React Native CLI

​Install

​iOS setup

​Android setup

​Launch the flow

​Expo

​Install

​Configure app.json

​Launch the flow

​Build with EAS (no Xcode required)

​ProGuard / R8 rules for Android release builds

​Troubleshooting EAS builds

​WebView fallback

​Resources

Pick your package

React Native CLI

Install

iOS setup

Android setup

Launch the flow

Expo

Install

Configure app.json

Launch the flow

Build with EAS (no Xcode required)

ProGuard / R8 rules for Android release builds

Troubleshooting EAS builds

WebView fallback

Resources