Mobile Integration Guide

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Prerequisites

• 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

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Integration Workflow

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")
    request.setValue("Bearer \(userSessionToken)", forHTTPHeaderField: "Authorization")
    
    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
}

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")
        .header("Authorization", "Bearer $userSessionToken")
        .post(requestBody)
        .build()
    
    val response = client.newCall(request).execute()
    val responseBody = response.body?.string()
    val jsonResponse = JSONObject(responseBody ?: "")
    return jsonResponse.getString("checkout_url")
}

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',
        'Authorization': `Bearer ${userSessionToken}`,
      },
      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;
  }
};

import 'dart:convert';
import 'package:http/http.dart' as http;

Future<String> getCheckoutUrl({
  required String productId,
  required String customerEmail,
  required String customerName,
}) async {
  final response = await http.post(
    Uri.parse('https://your-backend.com/api/create-checkout-session'),
    headers: {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer $userSessionToken',
    },
    body: jsonEncode({
      'productId': productId,
      'customerEmail': customerEmail,
      'customerName': customerName,
    }),
  );

  if (response.statusCode != 200) {
    throw Exception('Failed to get checkout URL: ${response.statusCode}');
  }
  return jsonDecode(response.body)['checkout_url'] as String;
}

​

Choose Your SDK

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Registering a Callback URL Scheme

android {
    defaultConfig {
        manifestPlaceholders["dodoCallbackScheme"] = "myapp"
    }
}

<key>CFBundleURLTypes</key>
<array>
  <dict>
    <key>CFBundleURLName</key>
    <string>myapp</string>
    <key>CFBundleURLSchemes</key>
    <array>
      <string>myapp</string>
    </array>
  </dict>
</array>

{
  "expo": {
    "scheme": "myapp",
    "plugins": [
      [
        "@dodopayments/react-native-checkout",
        { "scheme": "myappcheckout" }
      ]
    ]
  }
}

​

Appearance Customization

const result = await DodoCheckout.start({
  checkoutUrl,
  returnUrl: 'myapp://checkout/return',
  customization: {
    android: { toolbarColor: '#6366F1', closeButtonStyle: 'back' },
    ios: { presentationStyle: 'fullScreen', colorScheme: 'dark' },
  },
});

final result = await DodoCheckout.instance.start(
  CheckoutParams(
    checkoutUrl: Uri.parse(checkoutUrl),
    returnUrl: Uri.parse('myapp://checkout/return'),
    customization: BrowserCustomization(
      android: AndroidBrowserOptions(
        toolbarColor: Color(0xFF6366F1),
        closeButtonStyle: CloseButtonStyle.back,
      ),
      ios: IosBrowserOptions(
        presentationStyle: PresentationStyle.fullScreen,
        colorScheme: BrowserColorScheme.dark,
      ),
    ),
  ),
);

val result = DodoCheckout.start(
    activity,
    CheckoutParams(
        checkoutUrl = checkoutUrl,
        returnUrl = "myapp://checkout/return",
        customization = BrowserCustomization(
            toolbarColor = Color.parseColor("#6366F1"),
            closeButtonStyle = BrowserCustomization.CloseButtonStyle.BACK,
        )
    )
) { event -> }

let result = try await DodoCheckout.start(
    checkoutUrl: checkoutUrl,
    returnUrl: URL(string: "myapp://checkout/return")!,
    customization: BrowserCustomization(
        presentationStyle: .fullScreen,
        colorScheme: .dark
    )
)

​

Checkout Page Customization

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Mobile-Optimized Recipes

Minimal Mobile Checkout - fastest path to payment

Use this when you want the shortest possible form: payment methods at the top, only a postcode required for address, no discount field, theme matches the device.

• Node.js SDK
• Python SDK

import DodoPayments from 'dodopayments';

const client = new DodoPayments({
  bearerToken: process.env.DODO_PAYMENTS_API_KEY,
  environment: 'test_mode',
});

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_your_product_id', quantity: 1 }],
  customer: { email: 'user@example.com', name: 'Jane Smith' },
  billing_address: { country: 'US' },
  return_url: 'myapp://checkout/success',
  cancel_url: 'myapp://checkout/cancelled',
  billing_currency: 'USD',
  minimal_address: true,
  customization: {
    show_order_details: false,
    theme: 'system',
  },
  feature_flags: {
    allow_discount_code: false,
    allow_currency_selection: false,
  },
});

console.log(session.checkout_url);

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import os
import dodopayments

client = dodopayments.DodoPayments(
    bearer_token=os.environ.get("DODO_PAYMENTS_API_KEY"),
    environment="test_mode",
)

session = client.checkout_sessions.create(
    product_cart=[{"product_id": "pdt_your_product_id", "quantity": 1}],
    customer={"email": "user@example.com", "name": "Jane Smith"},
    billing_address={"country": "US"},
    return_url="myapp://checkout/success",
    cancel_url="myapp://checkout/cancelled",
    billing_currency="USD",
    minimal_address=True,
    customization={
        "show_order_details": False,
        "theme": "system",
    },
    feature_flags={
        "allow_discount_code": False,
        "allow_currency_selection": False,
    },
)

print(session.checkout_url)

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See Checkout Sessions for all available parameters and their defaults.

Branded Mobile Checkout - custom colors, fonts, and button label

Use this when the checkout page must feel like part of your app. Set your brand colors, a custom font, and a localized pay-button label.

• Node.js SDK
• Python SDK

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_your_product_id', quantity: 1 }],
  customer: { email: 'user@example.com', name: 'Jane Smith' },
  billing_address: { country: 'US' },
  billing_currency: 'USD',
  return_url: 'myapp://checkout/success',
  minimal_address: true,
  customization: {
    show_order_details: false,
    theme: 'dark',
    theme_config: {
      dark: {
        button_primary: '#7C3AED',
        button_primary_hover: '#6D28D9',
        button_text_primary: '#FFFFFF',
        bg_primary: '#1A1A2E',
        bg_secondary: '#16213E',
        text_primary: '#E2E8F0',
      },
      pay_button_text: 'Complete Purchase',
      radius: '8px',
    },
  },
});

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session = client.checkout_sessions.create(
    product_cart=[{"product_id": "pdt_your_product_id", "quantity": 1}],
    customer={"email": "user@example.com", "name": "Jane Smith"},
    billing_address={"country": "US"},
    billing_currency="USD",
    return_url="myapp://checkout/success",
    minimal_address=True,
    customization={
        "show_order_details": False,
        "theme": "dark",
        "theme_config": {
            "dark": {
                "button_primary": "#7C3AED",
                "button_primary_hover": "#6D28D9",
                "button_text_primary": "#FFFFFF",
                "bg_primary": "#1A1A2E",
                "bg_secondary": "#16213E",
                "text_primary": "#E2E8F0",
            },
            "pay_button_text": "Complete Purchase",
            "radius": "8px",
        },
    },
)

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theme_config accepts separate dark and light objects so the palette adapts to the device’s current appearance. See Checkout Sessions for the full color key reference.

One-Click Returning Customer - saved card, instant confirmation

Use this for signed-in users who have paid before. Combine a customer ID, their saved payment method, and confirm: true to skip the checkout form entirely.

• Node.js SDK
• Python SDK

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_your_product_id', quantity: 1 }],
  customer: { customer_id: 'cus_returning_customer_id' },
  billing_address: { country: 'US' },
  billing_currency: 'USD',
  return_url: 'myapp://checkout/success',
  payment_method_id: 'pm_saved_payment_method_id',
  confirm: true,
  show_saved_payment_methods: true,           // top-level parameter
  feature_flags: { redirect_immediately: true },
});

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session = client.checkout_sessions.create(
    product_cart=[{"product_id": "pdt_your_product_id", "quantity": 1}],
    customer={"customer_id": "cus_returning_customer_id"},
    billing_address={"country": "US"},
    billing_currency="USD",
    return_url="myapp://checkout/success",
    payment_method_id="pm_saved_payment_method_id",
    confirm=True,
    show_saved_payment_methods=True,           # top-level parameter
    feature_flags={"redirect_immediately": True},
)

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The status in the deep-link return is a UI hint only. Confirm access by listening for the payment.succeeded webhook on your backend.

Subscription with Free Trial - trial before first charge

Use this for subscription products that offer a free trial period before the first billing cycle.

• Node.js SDK
• Python SDK

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_your_subscription_product_id', quantity: 1 }],
  customer: { email: 'user@example.com', name: 'Jane Smith' },
  billing_address: { country: 'US' },
  billing_currency: 'USD',
  return_url: 'myapp://subscription/activated',
  cancel_url: 'myapp://subscription/cancelled',
  minimal_address: true,
  customization: {
    show_order_details: false,
    theme: 'system',
  },
  subscription_data: { trial_period_days: 14 },
});

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session = client.checkout_sessions.create(
    product_cart=[{"product_id": "pdt_your_subscription_product_id", "quantity": 1}],
    customer={"email": "user@example.com", "name": "Jane Smith"},
    billing_address={"country": "US"},
    billing_currency="USD",
    return_url="myapp://subscription/activated",
    cancel_url="myapp://subscription/cancelled",
    minimal_address=True,
    customization={"show_order_details": False, "theme": "system"},
    subscription_data={"trial_period_days": 14},
)

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Grant feature access when your backend receives the subscription.active webhook - not when the mobile SDK returns. See Subscription Integration Guide for the full webhook flow.

On-Demand Mandate - save a card for future variable charges

Use this to tokenize a customer’s card for later charges (wallet top-ups, pay-as-you-go, BNPL) without showing a “subscription” label. The customer authorizes their payment method once; you charge variable amounts on demand later.

This is the pattern used by apps that charge based on usage - for example, an astrology app that charges per session from a pre-authorized card, rather than on a fixed schedule.

• Node.js SDK
• Python SDK

// Step 1: Authorize the mandate (no charge yet)
const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_your_subscription_product_id', quantity: 1 }],
  customer: { email: 'user@example.com', name: 'Jane Smith' },
  billing_address: { country: 'US' },
  billing_currency: 'USD',
  return_url: 'myapp://mandate/authorized',
  cancel_url: 'myapp://mandate/cancelled',
  minimal_address: true,
  customization: {
    show_order_details: false,
    show_on_demand_tag: false, // hides the "on-demand" / "subscription" label
    theme: 'system',
  },
  subscription_data: {
    on_demand: { mandate_only: true },
  },
});

// Step 2: Later, charge any amount using the subscription ID
// (received via the subscription.active webhook after mandate authorization)
// await client.subscriptions.charge(subscriptionId, {
//   product_price: 2000,         // $20.00 in cents
//   product_currency: 'USD',
//   product_description: 'Session credits',
// });

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# Step 1: Authorize the mandate (no charge yet)
session = client.checkout_sessions.create(
    product_cart=[{"product_id": "pdt_your_subscription_product_id", "quantity": 1}],
    customer={"email": "user@example.com", "name": "Jane Smith"},
    billing_address={"country": "US"},
    billing_currency="USD",
    return_url="myapp://mandate/authorized",
    cancel_url="myapp://mandate/cancelled",
    minimal_address=True,
    customization={
        "show_order_details": False,
        "show_on_demand_tag": False,  # hides the "on-demand" / "subscription" label
        "theme": "system",
    },
    subscription_data={"on_demand": {"mandate_only": True}},
)

# Step 2: Later, charge any amount using the subscription ID
# client.subscriptions.charge(subscription_id, {
#     "product_price": 2000,  # $20.00 in cents
#     "product_currency": "USD",
#     "product_description": "Session credits",
# })

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On-demand charges require a minimum of 1 USD (100 cents). Amounts below 1 USD will be rejected with "value out of range". For a zero-amount authorization, use mandate_only: true as shown above, then charge at least 1 USD in subsequent calls.

See On-Demand Subscriptions for the full charge flow, webhook events, and retry policies.

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Subscription Flows from Mobile

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Regular Recurring Subscriptions

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On-Demand Subscriptions

• Set show_on_demand_tag: false so the checkout page does not show “subscription” or “on-demand” language. For card-tokenization use cases, customers do not expect subscription terminology.
• After the mandate is authorized, your backend receives subscription.active. Store the subscription_id - you will use it for all future charges.

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Subscription with Free Trial

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Upgrades and Downgrades

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Reducing Checkout Drop-Offs

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Optimize the Form

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Pre-Fill Customer Data

• New customers - set customer.email and customer.name from your auth session.
• Returning customers - set customer.customer_id to pre-fill all stored details automatically.
• Currency - always pass billing_currency and billing_address.country together.

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Recovery Tools

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Best Practices

• Security: Never ship an API key in your app. Create checkout sessions on your backend and pass only the resulting checkout_url to the client.
• Authority: Treat CheckoutResult.status as a UI hint. Grant access only after your backend confirms the payment.
• User Experience: Show a loading state while your backend creates the session, and handle cancelled as a normal outcome rather than an error.
• Testing: Use test mode and test cards, and verify the return-URL round trip on a real device as well as a simulator.
• Conversion: Set show_order_details: false and minimal_address: true for the best mobile checkout completion rates. Moving payment methods above the fold and reducing form fields are the two highest-impact changes you can make.
• Currency: Always pass both billing_currency and billing_address.country explicitly - if either is missing, adaptive currency may change the billing currency based on the customer’s IP address.
• On-demand billing: Set show_on_demand_tag: false when using on-demand subscriptions for card tokenization. Customers using a wallet top-up flow do not expect to see “subscription” language.
• Recovery: Enable abandoned cart recovery in your Dodo Payments dashboard to automatically re-engage customers who do not complete checkout.

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Troubleshooting

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Common Issues

• Callback never arrives: The scheme in returnUrl must match the one you registered. On Android that is the dodoCallbackScheme manifest placeholder; on iOS and React Native it is the Info.plist URL type.
• Checkout returns to the browser instead of your app (iOS): You haven’t forwarded the incoming URL. Call DodoCheckout.handleOpenURL(url) from .onOpenURL, scene(_:openURLContexts:), or a React Native Linking listener.
• PLATFORM_ERROR on Android: Most often a scheme mismatch. It can also appear if your MainActivity sets android:taskAffinity="" (the stock flutter create default), which lets some OEM builds lose the in-flight checkout.
• ALREADY_IN_PROGRESS: A checkout is still open. Await or dismiss the previous one before starting another.
• Build fails with an unresolved placeholder: You added the Android SDK but never set manifestPlaceholders["dodoCallbackScheme"].
• Payment succeeded but access wasn’t granted: Expected if you’re keying off the mobile result. Grant access from the payment.succeeded / subscription.active webhook instead.
• Apple Pay / Google Pay not showing on mobile: The checkout is loading inside an embedded WebView (WKWebView / Android WebView), which suppresses wallets and can break 3-D Secure. Open it with the SDK or in the system browser (Custom Tabs / SFSafariViewController) instead.

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Additional Resources

• Payment Integration Guide
• Webhook Documentation
• Testing Process
• Technical FAQs
• Checkout Session Customization
• On-Demand Subscriptions
• Subscription Upgrade/Downgrade
• Abandoned Cart Recovery
• Customer Portal