> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dodopayments.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Mobile Integration Guide

> Unified guide for integrating Dodo Payments into Android, iOS, React Native and Flutter mobile applications.

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="#integration-workflow">
    Get your mobile payment integration running in 4 simple steps
  </Card>

  <Card title="Platform Examples" icon="code" href="#platform-specific-integration">
    Complete code examples for Android, iOS, React Native, and Flutter
  </Card>
</CardGroup>

## Prerequisites

Before integrating Dodo Payments into your mobile app, ensure you have:

* **Dodo Payments Account**: Active merchant account with API access
* **API Credentials**: API key and webhook secret key from your dashboard
* **Mobile App Project**: Android, iOS, React Native, or Flutter application
* **Backend Server**: To securely handle checkout session creation

## Integration Workflow

The mobile integration follows a secure 4-step process where your backend handles API calls and your mobile app manages the user experience.

<Steps>
  <Step title="Backend: Create Checkout Session">
    <Card title="Checkout Session API Docs" icon="book" href="/developer-resources/checkout-session">
      Learn how to create a checkout session in your backend using Node.js, Python, and more. See complete examples and parameter references in the dedicated <strong>Checkout Sessions API</strong> documentation.
    </Card>

    <Note>
      **Security**: Checkout sessions must be created on your backend server, never in the mobile app. This protects your API keys and ensures proper validation.
    </Note>
  </Step>

  <Step title="Mobile: Get Checkout URL">
    Your mobile app calls your backend to get the checkout URL:

    <Tabs>
      <Tab title="iOS (Swift)">
        ```swift theme={null}
        func getCheckoutURL(productId: String, customerEmail: String, customerName: String) async throws -> String {
            let url = URL(string: "https://your-backend.com/api/create-checkout-session")!
            var request = URLRequest(url: url)
            request.httpMethod = "POST"
            request.setValue("application/json", forHTTPHeaderField: "Content-Type")
            
            let requestData: [String: Any] = [
                "productId": productId,
                "customerEmail": customerEmail,
                "customerName": customerName
            ]
            request.httpBody = try JSONSerialization.data(withJSONObject: requestData)
            
            let (data, _) = try await URLSession.shared.data(for: request)
            let response = try JSONDecoder().decode(CheckoutResponse.self, from: data)
            return response.checkout_url
        }
        ```
      </Tab>

      <Tab title="Android (Kotlin)">
        ```kotlin theme={null}
        suspend fun getCheckoutURL(productId: String, customerEmail: String, customerName: String): String {
            val client = OkHttpClient()
            val requestBody = JSONObject().apply {
                put("productId", productId)
                put("customerEmail", customerEmail)
                put("customerName", customerName)
            }.toString().toRequestBody("application/json".toMediaType())
            
            val request = Request.Builder()
                .url("https://your-backend.com/api/create-checkout-session")
                .post(requestBody)
                .build()
            
            val response = client.newCall(request).execute()
            val responseBody = response.body?.string()
            val jsonResponse = JSONObject(responseBody ?: "")
            return jsonResponse.getString("checkout_url")
        }
        ```
      </Tab>

      <Tab title="React Native (JavaScript)">
        ```javascript theme={null}
        const getCheckoutURL = async (productId, customerEmail, customerName) => {
          try {
            const response = await fetch('https://your-backend.com/api/create-checkout-session', {
              method: 'POST',
              headers: {
                'Content-Type': 'application/json',
              },
              body: JSON.stringify({
                productId,
                customerEmail,
                customerName
              })
            });
            
            const data = await response.json();
            return data.checkout_url;
          } catch (error) {
            console.error('Failed to get checkout URL:', error);
            throw error;
          }
        };
        ```
      </Tab>
    </Tabs>

    <Note>
      **Security**: Mobile apps only communicate with your backend, never directly with Dodo Payments API.
    </Note>
  </Step>

  <Step title="Mobile: Open Checkout in Browser">
    Open the checkout URL in a secure in-app browser for payment processing.

    <Card title="See platform-specific integration examples" icon="box" href="#platform-specific-integration">
      View full code and setup instructions for Android, iOS, and Flutter mobile payments.
    </Card>
  </Step>

  <Step title="Backend: Handle Payment Completion">
    Process payment completion via webhooks and redirect URLs to confirm payment status.
  </Step>
</Steps>

## Platform-Specific Integration

Choose your mobile platform below for complete implementation examples:

<Tabs>
  <Tab title="Android">
    ### Android Integration

    #### Chrome Custom Tabs Implementation

    ```kotlin theme={null}
    // Add Chrome Custom Tabs dependency to build.gradle
    implementation 'androidx.browser:browser:1.5.0'

    // In your Activity
    class PaymentActivity : AppCompatActivity() {
        private var customTabsSession: CustomTabsSession? = null
        private var customTabsClient: CustomTabsClient? = null
        private var customTabsServiceConnection: CustomTabsServiceConnection? = null

        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            // Initialize Custom Tabs
            customTabsServiceConnection = object : CustomTabsServiceConnection() {
                override fun onCustomTabsServiceConnected(name: ComponentName, client: CustomTabsClient) {
                    customTabsClient = client
                    customTabsClient?.warmup(0L)
                    customTabsSession = customTabsClient?.newSession(object : CustomTabsCallback() {
                        override fun onNavigationEvent(navigationEvent: Int, extras: Bundle?) {
                            // Handle navigation events
                        }
                    })
                }
                override fun onServiceDisconnected(name: ComponentName) {
                    customTabsClient = null
                }
            }
            CustomTabsClient.bindCustomTabsService(
                this,
                "com.android.chrome",
                customTabsServiceConnection!!
            )
            // Get checkout URL from backend and launch
            lifecycleScope.launch {
                try {
                    val checkoutURL = getCheckoutURL("prod_123", "customer@example.com", "Customer Name")
                    val customTabsIntent = CustomTabsIntent.Builder(customTabsSession)
                        .build()
                    customTabsIntent.launchUrl(this@PaymentActivity, Uri.parse(checkoutURL))
                } catch (e: Exception) {
                    // Handle error
                    Log.e("PaymentActivity", "Failed to get checkout URL", e)
                }
            }
        }
    }
    ```
  </Tab>

  <Tab title="iOS">
    ### iOS Integration

    #### SFSafariViewController Implementation

    ```swift theme={null}
    import SafariServices
    class PaymentViewController: UIViewController {
        override func viewDidLoad() {
            super.viewDidLoad()
            Task {
                do {
                    let checkoutURL = try await getCheckoutURL(
                        productId: "prod_123",
                        customerEmail: "customer@example.com",
                        customerName: "Customer Name"
                    )
                    if let url = URL(string: checkoutURL) {
                        let safariVC = SFSafariViewController(url: url)
                        present(safariVC, animated: true, completion: nil)
                    }
                } catch {
                    // Handle error
                    print("Failed to get checkout URL: \(error)")
                }
            }
        }
    }
    ```

    #### Deep Link Handling

    Configure URL schemes to handle payment completion redirects:

    **1. Set up URL schemes in Info.plist:**

    ```xml theme={null}
    <key>CFBundleURLTypes</key>
    <array>
      <dict>
        <key>CFBundleURLName</key>
        <string>myapp</string>
        <key>CFBundleURLSchemes</key>
        <array>
          <string>myapp</string>
        </array>
      </dict>
    </array>
    ```

    **2. Handle redirects in AppDelegate:**

    ```swift theme={null}
    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
        if url.scheme == "myapp" && url.host == "payment-status" {
            NotificationCenter.default.post(name: .paymentCompleted, object: url)
            return true
        }
        return false
    }
    ```

    **3. Listen for payment completion:**

    ```swift theme={null}
    NotificationCenter.default.addObserver(self, selector: #selector(handlePaymentCompletion(_:)), name: .paymentCompleted, object: nil)

    @objc func handlePaymentCompletion(_ notification: Notification) {
        if let url = notification.object as? URL {
            safariVC?.dismiss(animated: true)
            // Parse payment status from URL parameters
            let components = URLComponents(url: url, resolvingAgainstBaseURL: false)
            let paymentId = components?.queryItems?.first(where: { $0.name == "payment_id" })?.value
            let status = components?.queryItems?.first(where: { $0.name == "status" })?.value
            // Handle payment completion
        }
    }
    ```
  </Tab>

  <Tab title="React Native">
    ### React Native Integration

    #### Using Checkout Links (InAppBrowser)

    Open Dodo's hosted checkout page in an in-app browser.

    ##### InAppBrowser Implementation

    ```javascript theme={null}
    import React from 'react';
    import { View, TouchableOpacity, Text, Alert } from 'react-native';
    import { InAppBrowser } from 'react-native-inappbrowser-reborn';

    const PaymentButton = ({ productId, onPaymentComplete }) => {
      const openPaymentLink = async () => {
        try {
          // Get checkout URL from backend
          const checkoutURL = await getCheckoutURL(
            productId,
            'customer@example.com',
            'Customer Name'
          );
          
          const result = await InAppBrowser.open(checkoutURL, {
            // iOS options
            dismissButtonStyle: 'cancel',
            preferredBarTintColor: '#453AA4',
            preferredControlTintColor: 'white',
            readerMode: false,
            animated: true,
            modalPresentationStyle: 'fullScreen',
            modalTransitionStyle: 'coverVertical',
            modalEnabled: true,
            enableBarCollapsing: false,
            // Android options
            showTitle: true,
            toolbarColor: '#453AA4',
            secondaryToolbarColor: 'black',
            navigationBarColor: 'black',
            navigationBarDividerColor: 'white',
            enableUrlBarHiding: true,
            enableDefaultShare: true,
            forceCloseOnRedirection: false,
            animations: {
              startEnter: 'slide_in_right',
              startExit: 'slide_out_left',
              endEnter: 'slide_in_left',
              endExit: 'slide_out_right'
            },
            headers: {
              'my-custom-header': 'my custom header value'
            }
          });

          // Handle payment completion based on result
          if (result.type === 'dismiss') {
            // User dismissed the browser
            console.log('Payment browser dismissed');
          }
        } catch (error) {
          Alert.alert('Error', 'Failed to open payment page');
          console.error('InAppBrowser error:', error);
        }
      };

      return (
        <View style={{ padding: 20 }}>
          <TouchableOpacity
            style={{
              backgroundColor: '#007AFF',
              padding: 15,
              borderRadius: 8,
              alignItems: 'center'
            }}
            onPress={openPaymentLink}
          >
            <Text style={{ color: 'white', fontSize: 16, fontWeight: 'bold' }}>
              Pay Now
            </Text>
          </TouchableOpacity>
        </View>
      );
    };

    export default PaymentButton;
    ```

    #### Deep Link Handling for Payment Callbacks

    ```javascript theme={null}
    // App.js or your main component
    import React, { useEffect } from 'react';
    import { Linking } from 'react-native';

    const App = () => {
      useEffect(() => {
        // Handle deep links when app is already running
        const handleDeepLink = (url) => {
          if (url.includes('payment-status')) {
            const urlParams = new URLSearchParams(url.split('?')[1]);
            const paymentId = urlParams.get('payment_id');
            const status = urlParams.get('status');
            
            // Handle payment completion
            handlePaymentCallback(paymentId, status);
          }
        };

        // Listen for deep links
        const subscription = Linking.addEventListener('url', ({ url }) => {
          handleDeepLink(url);
        });

        // Handle deep link if app was opened from a link
        Linking.getInitialURL().then((url) => {
          if (url) {
            handleDeepLink(url);
          }
        });

        return () => subscription?.remove();
      }, []);

      const handlePaymentCallback = (paymentId, status) => {
        if (status === 'succeeded') {
          // Navigate to success screen or show success message
          console.log('Payment successful:', paymentId);
        } else {
          // Handle payment failure
          console.log('Payment failed:', paymentId);
        }
      };

      // Your app components...
    };

    export default App;
    ```

    #### Package Dependencies

    Add this dependency to your `package.json`:

    ```json theme={null}
    {
      "dependencies": {
        "react-native-inappbrowser-reborn": "^6.4.0"
      }
    }
    ```

    #### Installation Commands

    ```bash theme={null}
    # Install InAppBrowser
    npm install react-native-inappbrowser-reborn
    cd ios && pod install
    ```

    #### Android Configuration

    Add to `android/app/src/main/AndroidManifest.xml`:

    ```xml theme={null}
    <activity
      android:name="com.reactnativeinappbrowserreborn.InAppBrowserActivity"
      android:theme="@style/Theme.AppCompat.Dialog"
      android:exported="false" />
    ```

    #### iOS Configuration

    Add to `ios/YourApp/Info.plist`:

    ```xml theme={null}
    <key>CFBundleURLTypes</key>
    <array>
      <dict>
        <key>CFBundleURLName</key>
        <string>myapp</string>
        <key>CFBundleURLSchemes</key>
        <array>
          <string>myapp</string>
        </array>
      </dict>
    </array>
    ```

    <Tip>
      Use InAppBrowser for native browser experience. Handle deep links for payment callbacks.
    </Tip>

    ***

    #### Alternative: Native Payment SDK

    For a more integrated payment experience with native UI and full customization, Dodo Payments offers a React Native SDK.

    <Warning>
      **Regional Compliance**: In-app payment SDKs have regional restrictions. On **iOS**, native payment SDKs are only legal in the **EU** (under DMA terms). On **Android**, they're legal in User Choice Billing (UCB) markets. For other regions, use the checkout links approach above to ensure App Store and Play Store compliance.
    </Warning>

    <Card title="React Native SDK Integration Guide" icon="mobile-screen" href="/developer-resources/react-native-integration">
      Complete guide for integrating Dodo's React Native SDK with native payment sheets, full customization options, and direct payment handling. Includes setup, implementation, and testing instructions.
    </Card>

    <Info>
      Review the [App Store Fee Bypass Guide](/features/bypassing-app-store-fees) to understand regional compliance requirements for in-app payment integrations.
    </Info>
  </Tab>

  <Tab title="Flutter">
    ### Flutter Integration

    ```dart theme={null}
    import 'package:flutter/material.dart';
    import 'package:webview_flutter/webview_flutter.dart';
    import 'package:http/http.dart' as http;
    import 'dart:convert';

    Future<String> getCheckoutURL(String productId, String customerEmail, String customerName) async {
      final response = await http.post(
        Uri.parse('https://your-backend.com/api/create-checkout-session'),
        headers: {'Content-Type': 'application/json'},
        body: json.encode({
          'productId': productId,
          'customerEmail': customerEmail,
          'customerName': customerName,
        }),
      );
      
      if (response.statusCode == 200) {
        final data = json.decode(response.body);
        return data['checkout_url'];
      } else {
        throw Exception('Failed to get checkout URL: ${response.statusCode}');
      }
    }
    class PaymentScreen extends StatefulWidget {
      @override
      _PaymentScreenState createState() => _PaymentScreenState();
    }
    class _PaymentScreenState extends State<PaymentScreen> {
      late WebViewController _controller;
      String? checkoutURL;
      
      @override
      void initState() {
        super.initState();
        _getCheckoutURL();
      }
      
      Future<void> _getCheckoutURL() async {
        try {
          final url = await getCheckoutURL('prod_123', 'customer@example.com', 'Customer Name');
          setState(() {
            checkoutURL = url;
          });
        } catch (e) {
          // Handle error
          print('Failed to get checkout URL: $e');
        }
      }
      
      @override
      Widget build(BuildContext context) {
        return Scaffold(
          appBar: AppBar(title: Text('Payment')),
          body: checkoutURL == null 
            ? Center(child: CircularProgressIndicator())
            : WebView(
            initialUrl: checkoutURL,
            javascriptMode: JavascriptMode.unrestricted,
            onWebViewCreated: (WebViewController webViewController) {
              _controller = webViewController;
            },
            navigationDelegate: (NavigationRequest request) {
              if (request.url.contains('payment_id') && request.url.contains('status')) {
                // Handle payment completion
                final uri = Uri.parse(request.url);
                final paymentId = uri.queryParameters['payment_id'];
                final status = uri.queryParameters['status'];
                handlePaymentCompletion(paymentId, status);
                return NavigationDecision.prevent;
              }
              return NavigationDecision.navigate;
            },
          ),
        );
      }
      void handlePaymentCompletion(String? paymentId, String? status) {
        if (status == 'succeeded') {
          // Payment successful
        } else {
          // Payment failed
        }
      }
    }
    ```

    <Tip>
      Use WebView for payment links. Handle the redirect URL to detect payment completion.
    </Tip>
  </Tab>
</Tabs>

## Best Practices

* **Security**: Never store API keys in your app code. Use secure storage and SSL pinning.
* **User Experience**: Show loading indicators, handle errors gracefully, and provide clear messages.
* **Testing**: Use test cards, simulate network errors, and test on various devices.

## Troubleshooting

### Common Issues

* **WebView not opening payment link**: Ensure the payment link is valid and uses HTTPS.
* **Callback not received**: Check your return URL and webhook configuration.
* **API key errors**: Verify that your API key is correct and has the necessary permissions.

## Additional Resources

* [Payment Integration Guide](/developer-resources/integration-guide)
* [Webhook Documentation](/developer-resources/webhooks/intents/webhook-events-guide)
* [Testing Process](/miscellaneous/testing-process)
* [Technical FAQs](/miscellaneous/faq)

<Check>
  For questions or support, contact <a href="mailto:support@dodopayments.com">[support@dodopayments.com](mailto:support@dodopayments.com)</a>.
</Check>
