fyber 1.0.1

Official Fyber Payment SDK for Flutter. Process payments, manage customers, handle subscriptions, and more.

example/main.dart

import 'package:fyber/fyber.dart';

/// Fyber Flutter SDK Examples
///
/// Run with: dart run example/main.dart
void main() async {
  // Initialize the client
  final fyber = Fyber(
    apiKey: 'sk_test_your_api_key',
    environment: 'test', // or 'live' for production
  );

  try {
    // Example 1: Create a customer
    print('Creating customer...');
    final customer = await fyber.customers.create(CreateCustomerRequest(
      email: '[e-mail]',
      name: 'John Doe',
      phone: '[phone]',
    ));
    print('Customer created: ${customer.id}');

    // Example 2: Tokenize a card
    print('\nTokenizing card...');
    final token = await fyber.tokens.create(CreateTokenRequest(
      customerId: customer.id,
      card: CardSource(
        number: '4111111111111111',
        expMonth: '12',
        expYear: '2025',
        cvv: '123',
        holderName: 'John Doe',
      ),
      purpose: TokenPurpose.recurring,
      verifyCard: true,
    ));
    print('Token created: ${token.id}');
    print('Card: ${token.card?.brand} ****${token.card?.last4}');

    // Example 3: Create a payment with token
    print('\nCreating payment...');
    final payment = await fyber.payments.create(CreatePaymentRequest(
      amount: 1000, // $10.00
      currency: 'USD',
      tokenId: token.id,
      customerId: customer.id,
      description: 'Test payment',
    ));
    print('Payment created: ${payment.id}');
    print('Status: ${payment.status}');

    // Example 4: Create a checkout session
    print('\nCreating checkout session...');
    final session = await fyber.checkout.create(CreateCheckoutRequest(
      currency: 'USD',
      lineItems: [
        CheckoutLineItem(
          name: 'Premium Plan',
          amount: 2999,
          quantity: 1,
        ),
      ],
      successUrl: 'https://example.com/success',
      cancelUrl: 'https://example.com/cancel',
      customerId: customer.id,
    ));
    print('Checkout URL: ${session.url}');

    // Example 5: Create a subscription
    print('\nCreating subscription...');
    final subscription = await fyber.subscriptions.create(CreateSubscriptionRequest(
      customerId: customer.id,
      tokenId: token.id,
      amount: 999, // $9.99/month
      currency: 'USD',
      interval: SubscriptionInterval.month,
      trialDays: 14,
    ));
    print('Subscription created: ${subscription.id}');
    print('Status: ${subscription.status}');

    // Example 6: Check BNPL eligibility
    print('\nChecking installment eligibility...');
    final eligibility = await fyber.installments.checkEligibility(
      CheckEligibilityRequest(
        customerId: customer.id,
        amount: 50000, // $500.00
        currency: 'USD',
      ),
    );
    print('Eligible: ${eligibility.eligible}');
    if (eligibility.eligible) {
      print('Available installments: ${eligibility.availableInstallments}');
    }

    // Example 7: List payments
    print('\nListing payments...');
    final payments = await fyber.payments.list(ListPaymentsOptions(
      limit: 10,
      customerId: customer.id,
    ));
    print('Found ${payments.total} payments');

    // Example 8: Refund a payment
    print('\nRefunding payment...');
    final refund = await fyber.refunds.create(CreateRefundRequest(
      paymentId: payment.id,
      amount: 500, // Partial refund of $5.00
      reason: 'Customer request',
    ));
    print('Refund created: ${refund.id}');

  } on FyberException catch (e) {
    print('Error: ${e.message}');
    print('Code: ${e.code}');
  } finally {
    fyber.close();
  }
}

/// Example: Webhook verification
void webhookExample() {
  const payload = '{"id":"evt_123","type":"payment.succeeded"}';
  const signature = 't=1234567890,v1=abc123...';
  const secret = 'whsec_your_webhook_secret';

  try {
    final event = Fyber.verifyWebhook(
      payload: payload,
      signature: signature,
      secret: secret,
    );
    print('Webhook verified: ${event['type']}');
  } on FyberException catch (e) {
    print('Webhook verification failed: ${e.message}');
  }
}