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rystem.authentication.social.client

Framework-agnostic TypeScript library for social authentication with built-in PKCE support for secure OAuth 2.0 flows.

Works with: React, React Native, Next.js, Expo, Remix, and any JavaScript/TypeScript framework.

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- 🔐 PKCE Built-in: Automatic code_verifier generation for Microsoft OAuth (RFC 7636)
- ⚛️ React Hooks: Type-safe hooks for token and user management
- 🎨 Ready-to-Use Components: Login buttons, logout, authentication wrapper (React only)
- 🔄 Automatic Token Refresh: Handles token expiration seamlessly
- 📱 Multi-Platform: Web (React, Next.js), Mobile (React Native, Expo), and any framework via interfaces
- 🔌 Framework-Agnostic Core: Inject custom storage and routing services for any platform

🆕 What's New - Mobile Platform Support

All social providers now support mobile platforms! Configure platform-specific OAuth redirect URIs for seamless authentication across Web, React Native iOS, and React Native Android.

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| Provider | Web (Popup) | Web (Redirect) | React Native iOS | React Native Android | PKCE Support |
|----------|-------------|----------------|------------------|---------------------|--------------|
| Microsoft | ✅ | ✅ | ✅ | ✅ | ✅ |
| Google | ✅ | ✅ | ✅ | ✅ | - |
| Facebook | ✅ | ✅ | ✅ | ✅ | - |
| GitHub | ✅ | ✅ | ✅ | ✅ | - |
| Amazon | ✅ | ✅ | ✅ | ✅ | - |
| LinkedIn | ✅ | ✅ | ✅ | ✅ | - |
| X (Twitter) | ✅ | ✅ | ✅ | ✅ | - |
| TikTok | ✅ | ✅ | ✅ | ✅ | - |
| Instagram | ✅ | ✅ | ✅ | ✅ | - |
| Pinterest | ✅ | ✅ | ✅ | ✅ | - |

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1. Auto-Detection: Library automatically detects platform (Web/iOS/Android) from navigator.userAgent
2. Platform-Specific URIs: Configure custom redirect URIs per platform (e.g., msauth:// for iOS, myapp:// for Android)
3. Login Modes: Choose Popup (web) or Redirect (mobile) behavior
4. Deep Links: All buttons support mobile deep link OAuth callbacks
5. No Breaking Changes: Existing web apps work without modification

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``typescript
import { setupSocialLogin, PlatformType, LoginMode } from 'rystem.authentication.social.client';
import { Platform } from 'react-native'; // Only in React Native projects

setupSocialLogin(x => {
x.apiUri = "https://api.yourdomain.com";

// Platform configuration (auto-detects if not specified)
x.platform = {
type: PlatformType.Auto,

// Smart redirect path (auto-detects domain for web)
redirectPath: Platform.select({
ios: 'msauth://com.yourapp.bundle/auth', // Complete URI for mobile
android: 'myapp://oauth/callback', // Complete URI for mobile
web: '/account/login' // Path only (auto-detects domain)
}),

// Login mode (auto-set based on platform if not specified)
loginMode: Platform.select({
ios: LoginMode.Redirect,
android: LoginMode.Redirect,
web: LoginMode.Popup
})
};

x.microsoft.clientId = "your-client-id";
x.google.clientId = "your-client-id";
});
`

📖 Full Migration Guide: See PLATFORM_SUPPORT.md for detailed setup instructions, OAuth provider configuration, and troubleshooting.

📦 Installation

`bash
npm install rystem.authentication.social.client


or

1. ❌ No window, document, or localStorage in React Native
2. ❌ Web SDK scripts (Google Sign-In SDK, @azure/msal-browser) don't work in React Native
3. ✅ Native SDKs must be used instead (@react-native-google-signin/google-signin, @react-native-community/msal)

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| Component | Web | React Native |
|-----------|-----|--------------|
| Core Services (SocialLoginManager, setupSocialLogin) | ✅ Works | ✅ Works |
| React Hooks (useSocialToken, useSocialUser) | ✅ Works | ✅ Works |
| UI Components (MicrosoftButton, GoogleButton) | ✅ Works | ❌ Web-only |
| Storage | LocalStorageService | Custom IStorageService (AsyncStorage) |
| Routing | WindowRoutingService | Custom IRoutingService (Linking) |
| Platform | BrowserPlatformService | Custom IPlatformService (Dimensions) |

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- [ ] 1. Install @react-native-async-storage/async-storage
- [ ] 2. Create ReactNativeStorageService implementing IStorageService
- [ ] 3. Create ReactNativeRoutingService implementing IRoutingService
- [ ] 4. Create ReactNativePlatformService implementing IPlatformService
- [ ] 5. Install native OAuth SDKs (@react-native-community/msal, @react-native-google-signin/google-signin)
- [ ] 6. Create custom login button components
- [ ] 7. Use SocialLoginManager.Instance(null).updateToken() after successful native login

---

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#### 💾 Storage Service (AsyncStorage)

`bash
npm install @react-native-async-storage/async-storage
`

`typescript
// services/ReactNativeStorageService.ts
import AsyncStorage from '@react-native-async-storage/async-storage';
import { IStorageService } from 'rystem.authentication.social.client';

export class ReactNativeStorageService implements IStorageService {
get(key: string): string | null {
// Note: AsyncStorage is async, but IStorageService expects sync
// Use synchronous approach or modify your usage to handle promises
let result: string | null = null;
AsyncStorage.getItem(key).then(value => result = value);
return result;
}

set(key: string, value: string): void {
AsyncStorage.setItem(key, value).catch(error =>
console.error('AsyncStorage set error:', error)
);
}

remove(key: string): void {
AsyncStorage.removeItem(key).catch(error =>
console.error('AsyncStorage remove error:', error)
);
}

has(key: string): boolean {
return this.get(key) !== null;
}

clear(): void {
AsyncStorage.clear().catch(error =>
console.error('AsyncStorage clear error:', error)
);
}
}
`

#### 🧭 Routing Service (Linking API)

`typescript
// services/ReactNativeRoutingService.ts
import { Linking } from 'react-native';
import { IRoutingService } from 'rystem.authentication.social.client';

export class ReactNativeRoutingService implements IRoutingService {
private currentUrl: URL | null = null;

constructor() {
Linking.getInitialURL().then(url => {
if (url) this.currentUrl = new URL(url);
});

Linking.addEventListener('url', ({ url }) => {
this.currentUrl = new URL(url);
});
}

getSearchParam(key: string): string | null {
return this.currentUrl?.searchParams.get(key) ?? null;
}

getAllSearchParams(): URLSearchParams {
return this.currentUrl?.searchParams ?? new URLSearchParams();
}

getCurrentPath(): string {
if (!this.currentUrl) return '/';
return this.currentUrl.pathname + this.currentUrl.search;
}

navigateTo(url: string): void {
Linking.openURL(url);
}

navigateReplace(path: string): void {
// Implement with React Navigation or Expo Router
console.log('Navigate to:', path);
}

openPopup(url: string, name: string, features: string): Window | null {
Linking.openURL(url);
return null;
}
}
`

#### 📐 Platform Service (Dimensions & Events)

`typescript
// services/ReactNativePlatformService.ts
import { Dimensions, EventEmitter } from 'react-native';
import { IPlatformService } from 'rystem.authentication.social.client';

export class ReactNativePlatformService implements IPlatformService {
private eventEmitter = new EventEmitter();

addStorageListener(callback: () => void): void {
this.eventEmitter.addListener('storage', callback);
}

removeStorageListener(callback: () => void): void {
this.eventEmitter.removeListener('storage', callback);
}

getScreenWidth(): number {
return Dimensions.get('window').width;
}

getScreenHeight(): number {
return Dimensions.get('window').height;
}

loadScript(id: string, src: string, onLoad: () => void): HTMLScriptElement | null {
console.warn('Script loading not supported in React Native');
onLoad();
return null;
}

scriptExists(id: string): boolean {
return false;
}

removeScript(scriptElement: HTMLScriptElement): void {
// No-op
}

isPopup(): boolean {
return false;
}

closeWindow(): void {
// No-op
}
}
`

#### ⚙️ Complete Setup

`typescript
// App.tsx
import { setupSocialLogin, PlatformType, LoginMode } from 'rystem.authentication.social.client';
import { ReactNativeStorageService } from './services/ReactNativeStorageService';
import { ReactNativeRoutingService } from './services/ReactNativeRoutingService';
import { ReactNativePlatformService } from './services/ReactNativePlatformService';
import { Platform, Alert } from 'react-native';

setupSocialLogin(x => {
x.apiUri = "https://api.yourdomain.com";

// ✅ Inject React Native implementations
x.storageService = new ReactNativeStorageService();
x.routingService = new ReactNativeRoutingService();
x.platformService = new ReactNativePlatformService();

x.platform = {
type: PlatformType.Auto,
redirectPath: Platform.select({
ios: 'myapp://oauth/callback',
android: 'myapp://oauth/callback',
default: '/account/login'
}),
loginMode: LoginMode.Redirect
};

x.microsoft.clientId = "your-client-id";
x.google.clientId = "your-client-id";

x.onLoginFailure = (error) => {
Alert.alert('Login Failed', error.message);
};
});
`

---

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#### 📘 Microsoft Login (Native MSAL)

`bash
npm install @react-native-community/msal
`

`typescript
// components/MicrosoftLoginButton.tsx
import React from 'react';
import { Pressable, Text, StyleSheet, Alert } from 'react-native';
import { MSALConfiguration, MSALResult, PublicClientApplication } from '@react-native-community/msal';
import { SocialLoginManager, ProviderType } from 'rystem.authentication.social.client';

const MSAL_CONFIG: MSALConfiguration = {
auth: {
clientId: 'your-microsoft-client-id',
authority: 'https://login.microsoftonline.com/consumers',
},
};

export const MicrosoftLoginButton = () => {
const handleLogin = async () => {
try {
const pca = new PublicClientApplication(MSAL_CONFIG);
await pca.init();

const result: MSALResult = await pca.acquireToken({
scopes: ['openid', 'profile', 'email', 'User.Read'],
});

// ✅ Send token to backend
await SocialLoginManager.Instance(null).updateToken(
ProviderType.Microsoft,
result.idToken
);

console.log('✅ Microsoft login successful');
} catch (error: any) {
console.error('❌ Microsoft login failed:', error);
Alert.alert('Login Failed', error.message || 'Unknown error');
}
};

return (

🪟 Sign in with Microsoft

);
};

const styles = StyleSheet.create({
button: { padding: 12, borderRadius: 8, alignItems: 'center', marginVertical: 8 },
text: { color: '#fff', fontSize: 16, fontWeight: '600' },
});
`

#### 🔴 Google Login (Native SDK)

`bash
npm install @react-native-google-signin/google-signin
`

`typescript
// components/GoogleLoginButton.tsx
import React from 'react';
import { Pressable, Text, StyleSheet, Alert } from 'react-native';
import { GoogleSignin, statusCodes } from '@react-native-google-signin/google-signin';
import { SocialLoginManager, ProviderType } from 'rystem.authentication.social.client';

// Configure once at app startup
GoogleSignin.configure({
webClientId: 'your-google-web-client-id.apps.googleusercontent.com',
offlineAccess: true,
forceCodeForRefreshToken: true,
iosClientId: 'your-ios-client-id.apps.googleusercontent.com',
});

export const GoogleLoginButton = () => {
const handleLogin = async () => {
try {
await GoogleSignin.hasPlayServices();
const userInfo = await GoogleSignin.signIn();

if (!userInfo.idToken) throw new Error('No ID token received');

// ✅ Send token to backend
await SocialLoginManager.Instance(null).updateToken(
ProviderType.Google,
userInfo.idToken
);

console.log('✅ Google login successful');
} catch (error: any) {
if (error.code === statusCodes.SIGN_IN_CANCELLED) {
console.log('User cancelled login');
} else if (error.code === statusCodes.PLAY_SERVICES_NOT_AVAILABLE) {
Alert.alert('Error', 'Play Services not available');
} else {
console.error('❌ Google login failed:', error);
Alert.alert('Login Failed', error.message);
}
}
};

return (

🔵 Sign in with Google

);
};

const styles = StyleSheet.create({
button: { padding: 12, borderRadius: 8, alignItems: 'center', marginVertical: 8 },
text: { color: '#fff', fontSize: 16, fontWeight: '600' },
});
`

---

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`typescript
// screens/LoginScreen.tsx
import React from 'react';
import { View, Text, StyleSheet } from 'react-native';
import { MicrosoftLoginButton } from '../components/MicrosoftLoginButton';
import { GoogleLoginButton } from '../components/GoogleLoginButton';
import { useSocialToken, useSocialUser } from 'rystem.authentication.social.client';

export const LoginScreen = () => {
const token = useSocialToken();
const user = useSocialUser();

if (!token.isExpired) {
return (

Welcome, {user.username}!
Provider: {user.provider}
Email: {user.email}

);
}

return (

Choose Login Method



);
};

const styles = StyleSheet.create({
container: { flex: 1, justifyContent: 'center', alignItems: 'center', padding: 20 },
title: { fontSize: 20, fontWeight: 'bold', marginBottom: 20 },
welcome: { fontSize: 24, fontWeight: 'bold', marginBottom: 10 },
});
`

---

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What You Need:
1. Implement 3 services: IStorageService, IRoutingService, IPlatformService
2. Install native OAuth SDKs (not web SDKs!)
3. Create custom UI components
4. Call SocialLoginManager.Instance(null).updateToken() after native login success

What Works Automatically:
- ✅ useSocialToken() / useSocialUser() hooks
- ✅ Token storage and refresh logic
- ✅ Backend communication

Why No window Access Issues:
- ✅ Library uses service abstractions (IStorageService, IRoutingService, IPlatformService)
- ✅ You inject platform-specific implementations
- ✅ No polyfills needed!

---

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If you're using React Router or Next.js App Router, OAuth callbacks and navigation may not work correctly due to client-side routing intercepting native browser APIs.

👉 Solution: Implement a custom IRoutingService for your framework.

📖 See full guide: 🧭 Custom Routing Service section below with ready-to-use implementations for:
- React Router v6+
- Next.js App Router (v13+)
- Unit Testing

🚀 Quick Start (Web Applications)

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`typescript
import { SocialLoginWrapper, setupSocialLogin } from 'rystem.authentication.social.client';
import App from './App';

setupSocialLogin(x => {
// 🚀 ONE-LINE SETUP for web applications
// This configures localStorage, window routing, and browser platform APIs
x.useBrowserDefaults();

// API server URL
x.apiUri = "https://localhost:7017";

// Configure OAuth providers (only clientId needed for client-side)
x.microsoft.clientId = "0b90db07-be9f-4b29-b673-9e8ee9265927";
x.google.clientId = "23769141170-lfs24avv5qrj00m4cbmrm202c0fc6gcg.apps.googleusercontent.com";
x.facebook.clientId = "345885718092912";
x.github.clientId = "97154d062f2bb5d28620";

// Error handling callback
x.onLoginFailure = (error) => {
console.error(Login failed: ${error.message} (Code: ${error.code}));
alert(Authentication error: ${error.message});
};

// Automatic token refresh when expired
x.automaticRefresh = true;
});

function Root() {
return (



);
}

export default Root;
`

#### 🤔 What does useBrowserDefaults() do?

This helper method automatically configures three essential services for web browsers:

1. storageService: LocalStorageService → Uses browser localStorage to persist tokens, PKCE verifiers, and user data
2. routingService: WindowRoutingService → Uses window.location to read OAuth callback parameters and window.history for navigation
3. platformService: BrowserPlatformService → Uses window, document, and DOM APIs for popup windows, screen dimensions, and external SDK loading

Why is this needed?
The library is framework-agnostic and works in React, React Native, Next.js, and Expo. Each environment has different APIs:
- Web: Uses window, localStorage, document
- React Native: Uses AsyncStorage, Linking, Dimensions
- Next.js SSR: May not have window available

By requiring explicit service configuration, the library:
- ✅ Forces you to think about your environment
- ✅ Avoids unexpected crashes in non-browser environments
- ✅ Makes it clear which dependencies are being used
- ✅ Allows easy customization (e.g., using React Router instead of window.history)

Alternative: Manual configuration

If you want more control, you can configure services manually:

`typescript
import { LocalStorageService, WindowRoutingService, BrowserPlatformService } from 'rystem.authentication.social.client';

setupSocialLogin(x => {
x.storageService = new LocalStorageService();
x.routingService = new WindowRoutingService();
x.platformService = new BrowserPlatformService();
// ... rest of config
});
`

For React Native setup, see the 📱 React Native Complete Guide section below.

---

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`typescript
import { useSocialToken, useSocialUser, SocialLoginButtons, SocialLogoutButton } from 'rystem.authentication.social.client';

export const App = () => {
const token = useSocialToken();
const user = useSocialUser();

return (


1. Code Verifier Generation: When user clicks Microsoft login button
`typescript
const codeVerifier = await generateCodeVerifier(); // 43-128 chars random string
const codeChallenge = await generateCodeChallenge(codeVerifier); // SHA256 hash
`

2. Session Storage: Stores code_verifier for callback retrieval
`typescript
storeCodeVerifier('microsoft', codeVerifier);
`

3. OAuth Request: Sends code_challenge with S256 method
`
https://login.microsoftonline.com/consumers/oauth2/v2.0/authorize
?client_id={clientId}
&response_type=code
&redirect_uri={redirectUri}
&code_challenge={codeChallenge}
&code_challenge_method=S256
`

4. Token Exchange: Sends code_verifier to API server
`typescript
POST /api/Authentication/Social/Token?provider=Microsoft&code={code}&redirectPath=/account/login
Body: { "code_verifier": "original-verifier" }
`

5. Cleanup: Removes verifier from sessionStorage after use

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For custom implementations:

`typescript
import { generateCodeVerifier, generateCodeChallenge, storeCodeVerifier, getAndRemoveCodeVerifier } from 'rystem.authentication.social.react';

// Generate PKCE values
const codeVerifier = await generateCodeVerifier();
const codeChallenge = await generateCodeChallenge(codeVerifier);

// Store for later retrieval
storeCodeVerifier('custom-provider', codeVerifier);

// Build OAuth URL with code_challenge
const authUrl = https://oauth.provider.com/authorize?code_challenge=${codeChallenge}&code_challenge_method=S256;
window.location.href = authUrl;

// After OAuth callback, retrieve and remove verifier
const storedVerifier = getAndRemoveCodeVerifier('custom-provider');
`

🎣 React Hooks

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Get current JWT token for API requests:

`typescript
const token = useSocialToken();

interface Token {
accessToken: string; // JWT bearer token
refreshToken: string; // Refresh token for renewal
isExpired: boolean; // True if token expired
expiresIn: Date; // Token expiration timestamp
}

// Usage in API calls
if (!token.isExpired) {
const response = await fetch('/api/orders', {
headers: {
'Authorization': Bearer ${token.accessToken}
}
});
}
`

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Get authenticated user information:

`typescript
const user = useSocialUser();

interface SocialUser {
username: string; // User's email/username
isAuthenticated: boolean; // True if user is logged in
// Add custom properties from your API
}

if (user.isAuthenticated) {
console.log(Logged in as: ${user.username});
}
`

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Force token refresh:

`typescript
import { useContext } from 'react';
import { SocialLoginContextRefresh } from 'rystem.authentication.social.react';

const forceRefresh = useContext(SocialLoginContextRefresh);

const handleRefresh = async () => {
await forceRefresh();
console.log('Token refreshed!');
};
`

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Programmatic logout:

`typescript
import { useContext } from 'react';
import { SocialLoginContextLogout } from 'rystem.authentication.social.react';

const logout = useContext(SocialLoginContextLogout);

const handleLogout = async () => {
await logout();
window.location.href = '/login';
};
`

🎨 UI Components

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Renders all configured provider buttons:

`typescript
import { SocialLoginButtons } from 'rystem.authentication.social.react';


`

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`typescript
import {
SocialLoginButtons,
MicrosoftButton,
GoogleButton,
FacebookButton,
GitHubButton,
AmazonButton,
LinkedinButton,
XButton,
TikTokButton,
InstagramButton,
PinterestButton
} from 'rystem.authentication.social.react';

const customOrder = [
MicrosoftButton, // Show Microsoft first
GoogleButton,
GitHubButton,
LinkedinButton,
FacebookButton,
AmazonButton,
XButton,
TikTokButton,
InstagramButton,
PinterestButton
];


`

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`typescript
import { MicrosoftButton, GoogleButton } from 'rystem.authentication.social.react';

`typescript
import { SocialLogoutButton } from 'rystem.authentication.social.react';

Sign Out
`

🔧 Advanced Configuration

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The library now supports platform-specific configuration for Web, iOS, and Android (including React Native):

`typescript
import { setupSocialLogin, PlatformType, LoginMode } from 'rystem.authentication.social.react';

setupSocialLogin(x => {
x.apiUri = "https://yourdomain.com";

// Platform configuration
x.platform = {
type: PlatformType.Auto, // Auto-detect platform (Web/iOS/Android)

// Smart redirect path (detects if complete URI or relative path)
redirectPath: Platform.select({
web: '/account/login', // Relative path (auto-detects domain)
ios: 'msauth://com.yourapp.fantasoccer/auth', // Complete URI
android: 'myapp://oauth/callback', // Complete URI
default: '/account/login'
}),

// Login mode (popup for web, redirect for mobile)
loginMode: Platform.select({
web: LoginMode.Popup,
ios: LoginMode.Redirect,
android: LoginMode.Redirect,
default: LoginMode.Redirect
})
};

// OAuth providers
x.microsoft.clientId = "your-client-id";
x.google.clientId = "your-client-id";
});
`

#### React Native Example

For React Native apps, use platform-specific deep links:

`typescript
import { Platform } from 'react-native';
import { setupSocialLogin, PlatformType, LoginMode } from 'rystem.authentication.social.react';

setupSocialLogin(x => {
x.apiUri = "https://yourdomain.com";

x.platform = {
type: PlatformType.Auto, // Will detect iOS/Android automatically

// Deep link redirect paths for mobile
redirectPath: Platform.select({
ios: 'msauth://com.keyserdsoze.fantasoccer/auth', // Complete URI
android: 'fantasoccer://oauth/callback', // Complete URI
default: '/account/login' // Relative path for web
}),

loginMode: LoginMode.Redirect // Always use redirect for mobile
};

x.microsoft.clientId = "0b90db07-be9f-4b29-b673-9e8ee9265927";
});
`

Important: Configure deep links in your app:

iOS (Info.plist):
`xml
CFBundleURLTypes


CFBundleURLSchemes

msauth

CFBundleURLName
com.keyserdsoze.fantasoccer


`

Android (AndroidManifest.xml):
`xml






`

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Choose between popup and redirect modes:

`typescript
// Popup mode (default for web - opens in new window)
setupSocialLogin(x => {
x.loginMode = LoginMode.Popup; // or x.platform.loginMode
});

// Redirect mode (default for mobile - navigates in same window)
setupSocialLogin(x => {
x.loginMode = LoginMode.Redirect;
});
`

Use Cases:
- ✅ Popup: Best for desktop web apps (better UX, user stays on page)
- ✅ Redirect: Required for mobile apps, some browsers block popups

$3

Use built-in utilities for platform detection:

`typescript
import {
detectPlatform,
isMobilePlatform,
isReactNative,
PlatformType
} from 'rystem.authentication.social.react';

// Detect current platform
const platform = detectPlatform(); // Returns: PlatformType.Web | iOS | Android

// Check if mobile
if (isMobilePlatform(platform)) {
console.log('Running on mobile');
}

// Check if React Native
if (isReactNative()) {
console.log('Running in React Native');
}
`

$3

`typescript
import { setupSocialLogin, PlatformType, LoginMode, detectPlatform } from 'rystem.authentication.social.react';

// Detect platform automatically
const currentPlatform = detectPlatform();

setupSocialLogin(x => {
x.apiUri = "https://api.yourdomain.com";

// Configure based on detected platform
x.platform = {
type: currentPlatform,

redirectUri: (() => {
switch (currentPlatform) {
case PlatformType.iOS:
return 'msauth://com.yourapp.bundle/auth';
case PlatformType.Android:
return 'yourapp://oauth/callback';
default:
return typeof window !== 'undefined'
? window.location.origin
: 'http://localhost:3000';
}
})(),

loginMode: currentPlatform === PlatformType.Web
? LoginMode.Popup
: LoginMode.Redirect
};

// OAuth providers
x.microsoft.clientId = "your-microsoft-client-id";
x.google.clientId = "your-google-client-id";

// Error handling
x.onLoginFailure = (error) => {
if (currentPlatform === PlatformType.Web) {
alert(Login failed: ${error.message});
} else {
// Use React Native Alert or Toast
console.error('Login error:', error);
}
};

x.automaticRefresh = true;
});
`

📱 Mobile OAuth Configuration

$3

1. Register your mobile app redirect URI in Azure Portal
2. For iOS: msauth://com.yourapp.bundle/auth
3. For Android: yourapp://oauth/callback
4. Enable "Mobile and desktop applications" platform
5. Make sure PKCE is enabled (library handles this automatically)

$3

1. Configure OAuth consent screen for mobile
2. Add redirect URI: Use reverse client ID for iOS
3. Example: com.googleusercontent.apps.YOUR_CLIENT_ID:/oauth2redirect

$3

iOS Bundle ID Format:
`
msauth://com.yourcompany.yourapp/auth
`

Android Package Name Format:
`
yourapp://oauth/callback
`

🔍 How Platform Configuration Works

$3

When a user clicks a social login button, the library determines the OAuth redirect URI using this priority order:

`typescript
// Priority 1: Explicit platform.redirectUri (highest priority)
if (settings.platform?.redirectUri) {
redirectUri = settings.platform.redirectUri;
}
// Priority 2: Fallback to redirectDomain + redirectPath
else {
redirectUri = ${settings.redirectDomain}${settings.redirectPath || ''};
}
`

$3

1. Setup Configuration:
`typescript
setupSocialLogin(x => {
x.apiUri = "https://api.yourdomain.com";
x.redirectDomain = "https://web.yourdomain.com";
x.redirectPath = "/account/login";

x.platform = {
type: PlatformType.iOS,
redirectUri: "msauth://com.yourapp.bundle/auth" // Mobile deep link
};

x.microsoft.clientId = "your-client-id";
});
`

2. User Clicks MicrosoftButton:
- Library detects platform.redirectUri is set
- Uses msauth://com.yourapp.bundle/auth (NOT https://web.yourdomain.com/account/login)
- Generates PKCE code_verifier and code_challenge
- Constructs OAuth URL:
`
https://login.microsoftonline.com/consumers/oauth2/v2.0/authorize
?client_id=your-client-id
&redirect_uri=msauth%3A%2F%2Fcom.yourapp.bundle%2Fauth
&code_challenge=
&code_challenge_method=S256
`

3. OAuth Provider Redirects:
- Microsoft redirects to: msauth://com.yourapp.bundle/auth?code=ABC123&state=XYZ
- iOS deep link handler catches this URL
- React Native navigation extracts code and state

4. Token Exchange:
- Library calls API: POST /api/Authentication/Social/Token?provider=Microsoft&code=ABC123&redirectPath=/account/login
- API validates code using PKCE code_verifier
- Returns JWT access token

5. User Logged In:
- Token stored in AsyncStorage (React Native)
- useSocialToken() and useSocialUser() hooks update
- App navigates to /account/login (or dashboard)

$3

`typescript
export function detectPlatform(): PlatformType {
// Check if React Native environment
if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') {
// Detect iOS
if (/iPad|iPhone|iPod/.test(navigator.userAgent)) {
return PlatformType.iOS;
}
// Detect Android
if (/Android/.test(navigator.userAgent)) {
return PlatformType.Android;
}
}

// Default to Web
return PlatformType.Web;
}
`

$3

| Scenario | redirectDomain | redirectPath | platform.redirectUri | platform.type |
|----------|----------------|--------------|---------------------|---------------|
| Web SPA | https://app.com | /account/login | undefined | Web or Auto |
| React Native iOS | https://app.com (fallback) | /account/login | msauth://com.yourapp.bundle/auth | iOS or Auto |
| React Native Android | https://app.com (fallback) | /account/login | yourapp://oauth/callback | Android or Auto |
| Multi-Platform (Recommended) | https://app.com | /account/login | Platform.select({ ios: '...', android: '...', web: undefined }) | Auto |

$3

✅ DO:
- Use PlatformType.Auto for automatic detection
- Set platform.redirectUri explicitly for React Native
- Keep redirectDomain and redirectPath as fallbacks for web
- Use Platform.select() for cross-platform apps
- Encode redirect URIs in OAuth URLs (library does this automatically)

❌ DON'T:
- Hardcode platform detection (use detectPlatform() instead)
- Forget to register redirect URIs in OAuth provider consoles
- Use web redirect URIs (https://) for mobile apps
- Skip Info.plist/AndroidManifest.xml configuration for deep links

$3

Check which redirect URI is being used:

`typescript
import { getSocialLoginSettings } from 'rystem.authentication.social.react';

const settings = getSocialLoginSettings();
const effectiveRedirectUri = settings.platform?.redirectUri
|| ${settings.redirectDomain}${settings.redirectPath || ''};

console.log('Platform Type:', settings.platform?.type);
console.log('Redirect URI:', effectiveRedirectUri);
console.log('Login Mode:', settings.platform?.loginMode || settings.loginMode);
`

🆚 Popup vs Redirect Comparison

| Feature | Popup Mode | Redirect Mode |
|---------|-----------|---------------|
| Platform | Web only | Web + Mobile |
| User Experience | Stays on page | Leaves page temporarily |
| Browser Support | May be blocked | Always works |
| Mobile Apps | ❌ Not supported | ✅ Required |
| Session Persistence | ✅ Maintained | ⚠️ Depends on implementation |
| Security | ✅ Same-origin | ✅ PKCE required |

Error Handling

`typescript
setupSocialLogin(x => {
x.onLoginFailure = (error) => {
switch (error.code) {
case 3:
// Error during button click (client-side)
console.error('Client error:', error.message);
break;
case 15:
// Error during token retrieval from API
console.error('Token exchange failed:', error.message);
showNotification('Login failed. Please try again.');
break;
case 10:
// Error fetching user information from API
console.error('User fetch failed:', error.message);
break;
default:
console.error('Unknown error:', error);
}
};
});
`

💾 Custom Storage Service

By default, the library uses localStorage for persisting tokens, PKCE verifiers, and user data. You can customize this for secure storage (mobile), testing, or server-side storage.

$3

The library uses the Decorator Pattern with separation between infrastructure and domain logic:

`
IStorageService (interface) ← Generic key-value storage
↓
LocalStorageService (default) ← Browser localStorage
↓
├── PkceStorageService ← PKCE OAuth logic
├── TokenStorageService ← Token + expiry logic
└── UserStorageService ← User data logic
`

$3

No configuration needed - the library automatically uses LocalStorageService:

`typescript
import { setupSocialLogin } from 'rystem.authentication.social.react';

setupSocialLogin(x => {
x.apiUri = "https://api.yourdomain.com";
// storageService is automatically initialized with LocalStorageService
x.microsoft.clientId = "your-client-id";
});
`

$3

Implement IStorageService for custom storage (secure storage, Redis, etc.):

`typescript
import { setupSocialLogin, IStorageService } from 'rystem.authentication.social.react';

// Example: Secure Storage for React Native
class SecureStorageService implements IStorageService {
async get(key: string): Promise {
try {
// Use expo-secure-store or react-native-keychain
return await SecureStore.getItemAsync(key);
} catch (error) {
console.error('SecureStorage get error:', error);
return null;
}
}

async set(key: string, value: string): Promise {
try {
await SecureStore.setItemAsync(key, value);
} catch (error) {
console.error('SecureStorage set error:', error);
}
}

async remove(key: string): Promise {
try {
await SecureStore.deleteItemAsync(key);
} catch (error) {
console.error('SecureStorage remove error:', error);
}
}

async has(key: string): Promise {
const value = await this.get(key);
return value !== null;
}

async clear(): Promise {
// Optional: implement if needed
}
}

// Configure custom storage
setupSocialLogin(x => {
x.apiUri = "https://api.yourdomain.com";
x.storageService = new SecureStorageService(); // Use secure storage
x.microsoft.clientId = "your-client-id";
});
`

$3

Perfect for unit tests without persisting data:

`typescript
import { IStorageService } from 'rystem.authentication.social.react';

class MockStorageService implements IStorageService {
private storage = new Map();

get(key: string): string | null {
return this.storage.get(key) ?? null;
}

set(key: string, value: string): void {
this.storage.set(key, value);
}

remove(key: string): void {
this.storage.delete(key);
}

has(key: string): boolean {
return this.storage.has(key);
}

clear(): void {
this.storage.clear();
}
}

// Use in tests
setupSocialLogin(x => {
x.storageService = new MockStorageService();
// ... rest of config
});
`

$3

For server-side rendering or distributed systems:

`typescript
import { createClient } from 'redis';
import { IStorageService } from 'rystem.authentication.social.react';

class RedisStorageService implements IStorageService {
private client = createClient({ url: 'redis://localhost:6379' });

constructor() {
this.client.connect();
}

async get(key: string): Promise {
return await this.client.get(key);
}

async set(key: string, value: string): Promise {
await this.client.set(key, value, { EX: 3600 }); // 1 hour expiry
}

async remove(key: string): Promise {
await this.client.del(key);
}

async has(key: string): Promise {
const exists = await this.client.exists(key);
return exists === 1;
}

async clear(): Promise {
await this.client.flushAll();
}
}

setupSocialLogin(x => {
x.storageService = new RedisStorageService();
// ... rest of config
});
`

$3

The library stores data with these keys (backward-compatible):

| Key | Description | Service |
|-----|-------------|---------|
| socialUserToken | JWT access token + expiry | TokenStorageService |
| socialUserToken_expiry | Token expiration timestamp | TokenStorageService |
| socialUser | User profile data | UserStorageService |
| rystem_pkce_{provider}_verifier | PKCE code verifier | PkceStorageService |
| rystem_pkce_{provider}_challenge | PKCE code challenge (optional) | PkceStorageService |

$3

| Scenario | Recommended Storage |
|----------|-------------------|
| Web SPA | LocalStorageService (default) |
| React Native Mobile | SecureStorageService (expo-secure-store) |
| Unit Testing | MockStorageService (in-memory) |
| Server-Side Rendering | RedisStorageService or DatabaseStorageService |
| Electron Apps | Custom storage with encryption |

$3

Add encryption layer on top of any storage:

`typescript
class EncryptedStorageService implements IStorageService {
constructor(
private baseStorage: IStorageService,
private encryptionKey: string
) {}

async get(key: string): Promise {
const encrypted = await this.baseStorage.get(key);
if (!encrypted) return null;
return this.decrypt(encrypted, this.encryptionKey);
}

async set(key: string, value: string): Promise {
const encrypted = this.encrypt(value, this.encryptionKey);
await this.baseStorage.set(key, encrypted);
}

async remove(key: string): Promise {
await this.baseStorage.remove(key);
}

async has(key: string): Promise {
return await this.baseStorage.has(key);
}

private encrypt(text: string, key: string): string {
// Use crypto library (e.g., crypto-js)
return CryptoJS.AES.encrypt(text, key).toString();
}

private decrypt(ciphertext: string, key: string): string {
const bytes = CryptoJS.AES.decrypt(ciphertext, key);
return bytes.toString(CryptoJS.enc.Utf8);
}
}

// Usage
const secureStorage = new LocalStorageService();
const encryptedStorage = new EncryptedStorageService(
secureStorage,
'your-encryption-key'
);

setupSocialLogin(x => {
x.storageService = encryptedStorage;
// ... rest of config
});
`

📖 Full Storage Architecture Guide: See STORAGE_ARCHITECTURE.md for detailed technical documentation.

---

🧭 Custom Routing Service

🧭 Custom Routing Service

$3

Problem: Client-side routing frameworks (React Router, Next.js App Router, Remix) intercept native browser APIs, causing two critical issues:

1. OAuth Callback Detection: window.location.search is empty even when URL contains parameters
2. Navigation Bypass: window.location.href and window.history.replaceState() bypass the router, losing routing state

Solution: The IRoutingService abstraction provides a unified interface for:
- URL Parameter Reading (OAuth callback detection)
- Navigation Operations (redirects, return URLs, cleanup)

$3

By default, the library uses WindowRoutingService which uses native browser APIs:

`typescript
// ✅ Works automatically with:
// - Vanilla React (no routing library)
// - Standard browser navigation
// - Server-side rendered apps
// - Next.js Pages Router (with server redirects)
setupSocialLogin(x => {
// No routingService config needed - uses WindowRoutingService by default
x.apiUri = 'https://api.example.com';
});
`

$3

| Framework | Needs Custom? | Why? | Implementation |
|-----------|---------------|------|----------------|
| React Router | ✅ YES | Client-side routing intercepts window APIs | ReactRouterRoutingService (see below) |
| Next.js App Router | ✅ YES | Uses router.push/replace for navigation | NextAppRouterRoutingService (see below) |
| Next.js Pages Router | ⚠️ MAYBE | Depends on navigation style | Test if return URLs work |
| Remix | ✅ YES | Uses @remix-run/react router | Similar to React Router |
| Vanilla React | ❌ No | No routing framework | Default works ✅ |
| Server-Side Rendering | ❌ No | Full page reloads | Default works ✅ |

📁 Ready-to-use example files are available in src/services/:
- ReactRouterRoutingService.example.ts - React Router v6+ (unified)
- NextAppRouterRoutingService.example.ts - Next.js App Router v13+ (unified)
- MockRoutingService.example.ts - Unit testing with verification methods

Copy these files to your project and remove the .example extension.

---

$3

If you're using React Router v6+, use this unified routing service:

`typescript
import { useSearchParams, useNavigate, useLocation } from 'react-router-dom';
import { IRoutingService } from 'rystem.authentication.social.react';

/**
* Unified Routing Service for React Router v6+
* Handles both URL reading and navigation
*/
export class ReactRouterRoutingService implements IRoutingService {
private searchParamsGetter: (() => URLSearchParams) | null = null;
private navigateFunc: ((to: string, options?: any) => void) | null = null;
private location: any = null;

/**
* Single initialization with all React Router hooks
*/
initialize(
searchParamsGetter: () => URLSearchParams,
navigateFunc: (to: string, options?: any) => void,
location: any
): void {
this.searchParamsGetter = searchParamsGetter;
this.navigateFunc = navigateFunc;
this.location = location;
}

// URL Parameter Reading (OAuth callbacks)
getSearchParam(key: string): string | null {
return this.searchParamsGetter?.().get(key) || null;
}

getAllSearchParams(): URLSearchParams {
return this.searchParamsGetter?.() || new URLSearchParams();
}

// Navigation Operations
getCurrentPath(): string {
return this.location
? this.location.pathname + this.location.search
: window.location.pathname + window.location.search;
}

navigateTo(url: string): void {
// External OAuth redirects must use window.location
if (url.startsWith('http')) {
window.location.href = url;
} else {
this.navigateFunc?.(url);
}
}

navigateReplace(path: string): void {
this.navigateFunc?.(path, { replace: true });
}

openPopup(url: string, name: string, features: string): Window | null {
return window.open(url, name, features);
}
}
`

#### Usage with React Router

`typescript
import { BrowserRouter, useSearchParams, useNavigate, useLocation } from 'react-router-dom';
import { setupSocialLogin, SocialLoginWrapper, MicrosoftButton } from 'rystem.authentication.social.react';
import { ReactRouterRoutingService } from './ReactRouterRoutingService';

// Create singleton instance
const routingService = new ReactRouterRoutingService();

// Setup configuration ONCE at app startup
setupSocialLogin(x => {
x.apiUri = 'https://api.example.com';
x.routingService = routingService; // ✅ One service for everything
x.providers = [
{ provider: ProviderType.Microsoft, clientId: 'your-client-id' }
];
});

// Main App Component
function App() {
const [searchParams] = useSearchParams();
const navigate = useNavigate();
const location = useLocation();

// ✅ Single initialization with all hooks
useEffect(() => {
routingService.initialize(() => searchParams, navigate, location);
}, [searchParams, navigate, location]);

return (


export default Root;
`

---

$3

For Next.js 13+ App Router with client components:

`typescript
'use client';

import { useRouter, usePathname, useSearchParams } from 'next/navigation';
import { IRoutingService } from 'rystem.authentication.social.react';

/**
* Unified Routing Service for Next.js App Router
* Handles both URL reading and navigation
*/
export class NextAppRouterRoutingService implements IRoutingService {
private router: any = null;
private pathname: string | null = null;
private searchParams: URLSearchParams | null = null;

/**
* Single initialization with all Next.js hooks
*/
initialize(router: any, pathname: string, searchParams: URLSearchParams | null): void {
this.router = router;
this.pathname = pathname;
this.searchParams = searchParams;
}

// URL Parameter Reading (OAuth callbacks)
getSearchParam(key: string): string | null {
return this.searchParams?.get(key) || null;
}

getAllSearchParams(): URLSearchParams {
return this.searchParams || new URLSearchParams();
}

// Navigation Operations
getCurrentPath(): string {
if (!this.pathname) return window.location.pathname + window.location.search;
const search = this.searchParams?.toString();
return search ? ${this.pathname}?${search} : this.pathname;
}

navigateTo(url: string): void {
// External OAuth redirects must use window.location
if (url.startsWith('http')) {
window.location.href = url;
} else {
this.router?.push(url);
}
}

navigateReplace(path: string): void {
this.router?.replace(path);
}

openPopup(url: string, name: string, features: string): Window | null {
return window.open(url, name, features);
}
}
`

#### Usage with Next.js App Router

`typescript
'use client'; // ✅ Must be a Client Component

import { useRouter, usePathname, useSearchParams } from 'next/navigation';
import { useEffect } from 'react';
import { setupSocialLogin, SocialLoginWrapper, MicrosoftButton } from 'rystem.authentication.social.react';
import { NextAppRouterRoutingService } from './NextAppRouterRoutingService';

// Create singleton instance
const routingService = new NextAppRouterRoutingService();

// Setup configuration ONCE
setupSocialLogin(x => {
x.apiUri = 'https://api.example.com';
x.routingService = routingService; // ✅ One service for everything
x.providers = [
{ provider: ProviderType.Microsoft, clientId: 'your-client-id' }
];
});

export default function LoginPage() {
const router = useRouter();
const pathname = usePathname();
const searchParams = useSearchParams();

// ✅ Single initialization with all hooks
useEffect(() => {
routingService.initialize(router, pathname, searchParams);
}, [router, pathname, searchParams]);

return (



`typescript
import { MockRoutingService } from './MockRoutingService';

const mockRouting = new MockRoutingService();

// Setup test data
mockRouting.setSearchParam('code', 'test-auth-code');
mockRouting.setSearchParam('state', 'microsoft');
mockRouting.setCurrentPath('/account/login?tab=oauth');

setupSocialLogin(x => {
x.routingService = mockRouting;
// ... rest of test config
});

// Run OAuth flow in test
// ...

// Verify navigation behavior
expect(mockRouting.wasNavigateToCalledWith('https://oauth.provider.com')).toBe(true);
expect(mockRouting.wasReplaceCalledWith('/dashboard')).toBe(true);
expect(mockRouting.getNavigationHistory()).toEqual([
'https://oauth.provider.com',
'/dashboard'
]);
`

---

$3

1. Single Initialization: Initialize routing service with ALL framework hooks in one call (not separate calls like before).

2. Singleton Pattern: Create ONE instance and reuse it. Don't create new instances on every render.

3. Effect Dependencies: Always include routing hooks in useEffect dependency array:
`typescript
useEffect(() => {
routingService.initialize(/ hooks /);
}, [searchParams, navigate, location]); // ✅ All deps
`

4. External OAuth URLs: OAuth redirects to external providers (e.g., https://login.microsoftonline.com) MUST use window.location.href regardless of framework.

5. Return URL Feature: The routing service handles saving the current page before OAuth and returning after login. If this doesn't work, check console for initialization warnings.

---

$3

Check your routing service is properly initialized:

`typescript
console.log('Routing Service:', settings.routingService.constructor.name);
console.log('Current Path:', settings.routingService.getCurrentPath());
console.log('OAuth Code:', settings.routingService.getSearchParam('code'));
`

You'll see these logs in SocialLoginWrapper during OAuth callbacks.

---

$3

Before (without custom routing service):
`typescript
// ❌ PROBLEM 1: OAuth callback params not found
const code = new URLSearchParams(window.location.search).get('code');
// Returns null even though URL is: /login?code=ABC&state=microsoft
// (React Router intercepts client-side navigation)

// ❌ PROBLEM 2: Navigation bypasses router
window.location.href = 'https://oauth.provider.com'; // Works but...
// ... later:
window.history.replaceState({}, '', '/dashboard'); // ❌ React Router doesn't know!
// Result: URL changes but component doesn't update, state lost
`

After (with custom routing service):
`typescript
// ✅ SOLUTION 1: Framework-aware URL reading
const code = routingService.getSearchParam('code');
// Uses React Router's useSearchParams internally
// Returns 'ABC' correctly!

// ✅ SOLUTION 2: Framework-aware navigation
routingService.navigateTo('https://oauth.provider.com'); // External, uses window.location
// ... later:
routingService.navigateReplace('/dashboard'); // ✅ Calls navigate(path, {replace: true})
// Result: React Router updates correctly, components re-render!
`

---

$3

| Feature | Before (v0.3.x) | After (v0.4.0) |
|---------|-----------------|----------------|
| Services | IUrlService + INavigationService | IRoutingService (unified) ✅ |
| Settings | 2 fields (urlService, navigationService) | 1 field (routingService) ✅ |
| Initialization | 2 separate calls | 1 unified call ✅ |
| Hooks | Split across 2 services | All in one place ✅ |
| Example Files | 8 files (4 URL + 4 Nav) | 3 files (unified) ✅ |
| Complexity | Higher (duplicate patterns) | Lower (single pattern) ✅ |

---

$3

`typescript
import { useSocialToken } from 'rystem.authentication.social.react';

const MyComponent = () => {
const token = useSocialToken();

const fetchProtectedData = async () => {
if (token.isExpired) {
alert('Please login first');
return;
}

try {
const response = await fetch('https://api.example.com/protected', {
headers: {
'Authorization': Bearer ${token.accessToken},
'Content-Type': 'application/json'
}
});

if (response.status === 401) {
// Token might be expired, force refresh
const forceRefresh = useContext(SocialLoginContextRefresh);
await forceRefresh();
// Retry request
}

const data = await response.json();
return data;
} catch (error) {
console.error('API error:', error);
}
};

return Load Data;
};
`

$3

`typescript
interface CustomSocialUser {
username: string;
isAuthenticated: boolean;
displayName: string;
avatar: string;
roles: string[];
}

const MyComponent = () => {
const user = useSocialUser();

return (


{user.displayName}

Roles: {user.roles.join(', ')}

`css
/ No JavaScript needed - CSS handles it automatically /
@media (prefers-color-scheme: dark) {
/ Dark mode styles applied automatically /
}
`

$3

Control the theme programmatically by setting the data-theme attribute on any parent element:

`typescript
import { MicrosoftButton } from 'rystem.authentication.social.react';

export const ThemedLoginPage = () => {
const [isDark, setIsDark] = useState(false);

return (


`typescript
export const TailwindThemedLogin = () => {
return (


1. [data-theme="dark"] attribute (highest priority)
2. .dark-mode CSS class
3. @media (prefers-color-scheme: dark) system preference (fallback)

$3

Override the default colors using CSS variables:

`css
/ Light mode customization /
:root {
--rsb-microsoft-bg: #2f2f2f;
--rsb-microsoft-color: #ffffff;
--rsb-hover-brightness: 1.1;
}

/ Dark mode customization /
[data-theme="dark"] {
--rsb-microsoft-bg: #404040;
--rsb-microsoft-color: #e0e0e0;
--rsb-hover-brightness: 1.15;
}

/ Specific provider override /
[data-theme="dark"] .rystem-social-button--google {
background: linear-gradient(135deg, #434343 0%, #363636 100%);
}
`

$3

| Variable | Default (Light) | Default (Dark) | Description |
|----------|----------------|----------------|-------------|
| --rsb-background | Provider brand color | Darker shade | Button background |
| --rsb-text | #ffffff | #e0e0e0 | Button text color |
| --rsb-hover-brightness | 1.05 | 1.15 | Hover effect intensity |
| --rsb-focus-ring | Provider color | Lighter shade | Keyboard focus outline |
| --rsb-shadow | rgba(0,0,0,0.1) | rgba(0,0,0,0.3) | Button shadow |
| --rsb-disabled-opacity | 0.6 | 0.5 | Disabled state opacity |

$3

#### Next.js with next-themes

`typescript
import { useTheme } from 'next-themes';
import { SocialLoginButtons } from 'rystem.authentication.social.react';

export const NextJsLogin = () => {
const { theme, setTheme } = useTheme();

return (


`typescript
const ThemeContext = createContext({ isDark: false, toggle: () => {} });

export const ThemeProvider = ({ children }) => {
const [isDark, setIsDark] = useState(
() => window.matchMedia('(prefers-color-scheme: dark)').matches
);

useEffect(() => {
const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
const handler = (e) => setIsDark(e.matches);
mediaQuery.addEventListener('change', handler);
return () => mediaQuery.removeEventListener('change', handler);
}, []);

return (
setIsDark(!isDark) }}>


// Usage
export const App = () => (



);
`

#### Tailwind CSS Integration

`typescript
// tailwind.config.js
module.exports = {
darkMode: 'class', // Enable class-based dark mode
// ...
};

// Component
export const TailwindLogin = () => {
const [darkMode, setDarkMode] = useState(false);

return (


`typescript
import { render } from '@testing-library/react';
import { MicrosoftButton } from 'rystem.authentication.social.react';

test('button renders correctly in dark mode', () => {
const { container } = render(


``typescript
import { useState, useContext } from 'react';
import {
SocialLoginButtons,
SocialLoginContextLogout,
SocialLoginContextRefresh,
SocialLogoutButton,
useSocialToken,
useSocialUser,
MicrosoftButton,
GoogleButton,
GitHubButton
} from 'rystem.authentication.social.react';

const customButtons = [MicrosoftButton, GoogleButton, GitHubButton];

export const Dashboard = () => {
const token = useSocialToken();
const user = useSocialUser();
const forceRefresh = useContext(SocialLoginContextRefresh);
const logout = useContext(SocialLoginContextLogout);
const [count, setCount] = useState(0);

return (