createPaymentUrl method

Implementation

@override
Future<PaymentUrlResponse> createPaymentUrl(PaymentRequest request) async {
  final response = await makeBackendRequest(
    endpoint: '/api/payments/create',
    method: 'POST',
    body: {
      'provider': 'paystack',
      'amount': (request.amount * 100).round(), // Convert to kobo
      'currency': request.currency.toUpperCase(),
      'description': request.description,
      'reference': request.orderId,
      'email': request.customerEmail ?? '',
      'name': request.customerName,
      'phone': request.customerPhone,
      'callback_url':
          request.successUrl ?? '${config.backendUrl}/api/payments/success',
      'cancel_url':
          request.cancelUrl ?? '${config.backendUrl}/api/payments/cancel',
      'metadata': request.metadata,
      'public_key': config.apiKey,
      'environment': config.environment.name,
    },
  );

  final data = handleResponse(response);
  return PaymentUrlResponse.fromJson(data);
}