flutter_stripe

The Stripe Flutter SDK allows you to build delightful payment experiences in your native Android and iOS apps using Flutter. We provide powerful and customizable UI screens and elements that can be used out-of-the-box to collect your users' payment details.

Features

Simplified Security: We make it simple for you to collect sensitive data such as credit card numbers and remain PCI compliant. This means the sensitive data is sent directly to Stripe instead of passing through your server. For more information, see our Integration Security Guide.

Apple Pay: We provide a seamless integration with Apple Pay.

Payment methods: Accepting more payment methods helps your business expand its global reach and improve checkout conversion.

SCA-Ready: The SDK automatically performs native 3D Secure authentication if needed to comply with Strong Customer Authentication regulation in Europe.

Native UI: We provide native screens and elements to securely collect payment details on Android and iOS.

Installation

dart pub add flutter_stripe

Requirements

Android

Android 5.0 (API level 21) and above

iOS

Compatible with apps targeting iOS 11 or above.

Usage example

// main.dart
import 'package:stripe/stripe.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  // set the publishable key for Stripe - this is mandatory
  Stripe.publishableKey = stripePublishableKey;
  runApp(App());
}

// payment_screen.dart
class PaymentScreen extends StatelessWidget {
  
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: Container(
        alignment: Alignment.center,
        padding: EdgeInsets.all(16),
        child: CardField(
          onCardChanged: (card) {
            print(card);
          },
        ),
      ),
    );
  }
}

Stripe initialization

To initialize Stripe in your Flutter app, use the Stripe base class.

Stripe offers publishableKey, stripeAccountId, threeDSecureParams and merchantIdentifier. Only publishableKey is required.

Dart API

The library offers several methods to handle stripe related actions:

Future<PaymentMethod> createPaymentMethod(...);
Future<PaymentIntent> handleCardAction(...);
Future<PaymentIntent> confirmPaymentMethod(...);
Future<void> configure3dSecure(...);
Future<bool> isApplePaySupported();
Future<void> presentApplePay(...);
Future<void> confirmApplePayPayment(...);
Future<SetupIntent> confirmSetupIntent(...);
Future<PaymentIntent> retrievePaymentIntent(...);
Future<String> createTokenForCVCUpdate(...);

The example app offers examples on how to use these methods.

Run the example app

  • Install the dependencies
    • flutter pub get
  • Set up env vars for a local backend
    • cp server/.env.example server/.env and set the variable values in your newly created .env file.
  • Start the example
    • Terminal 1: yarn example start:server
    • Terminal 2: flutter run
Additional steps for webhook forwarding

Known issues

  • the Card field on Android has focus issues - it's being tracked in #14 and related to issues in the Flutter framework

Libraries

flutter_stripe