getInvoice method

Future<PaylinkInvoice> getInvoice(String transactionNo)

Retrieves invoice details

Implementation

Future<PaylinkInvoice> getInvoice(String transactionNo) async {
  try {
    if (idToken == null) await _authenticate();

    final response = await http.get(
      Uri.parse('$apiBaseUrl/api/getInvoice/$transactionNo'),
      headers: {
        'accept': '*/*',
        'content-type': 'application/json',
        'Authorization': 'Bearer $idToken',
      },
    );

    if (response.statusCode != 200) {
      _handleResponseError(response, 'Failed to get the invoice');
    }

    if (response.body.isEmpty) {
      throw Exception('Order details missing from the response');
    }

    /// Decode the JSON response and extract the order details
    final orderDetails = json.decode(response.body);

    if (orderDetails is! Map<String, dynamic>) {
      throw Exception('Order details missing from the response');
    }

    return PaylinkInvoice.fromResponseData(orderDetails);
  } catch (e) {
    rethrow;
  }
}