initializePayment method

Future<Map<String, dynamic>> initializePayment({ required double amount, required String email, required String currency, required String redirectUrl, required String? phoneNumber, required String customerName, required String title, required String description, })

Initialize payment with Flutterwave

Implementation

Future<Map<String, dynamic>> initializePayment({
  required double amount,
  required String email,
  required String currency,
  required String redirectUrl,
  required String? phoneNumber,
  required String customerName,
  required String title,
  required String description,
}) async {
  const String baseUrl = "https://api.flutterwave.com/v3";
  final String reference = generateReference();

  Map<String, dynamic> data = {
    "payment_options": "card,banktransfer",
    "amount": amount,
    "email": email,
    "tx_ref": reference,
    "currency": currency,
    "redirect_url": redirectUrl,
    "customer": {"email": email, "name": customerName},
    "customizations": {"title": title, "description": description}
  };

  if (phoneNumber != null) {
    data["customer"]["phone_number"] = phoneNumber;
  }

  final response = await http.post(
    Uri.parse("$baseUrl/payments"),
    headers: {
      "Authorization": "Bearer $secretKey",
      "Content-Type": "application/json",
    },
    body: jsonEncode(data),
  );

  if (response.statusCode == 200) {
    return jsonDecode(response.body);
  } else {
    throw Exception("Failed to initialize payment: ${response.body}");
  }
}