checkCoupon function

Future<ValidateCouponModel> checkCoupon(String? userId, String amount, String? couponCode, Config config,)

Implementation

Future<ValidateCouponModel> checkCoupon(
    String? userId, String amount, String? couponCode, Config config) async {
  String path =
      '${constants.API_HOST}/tenant/${config.applicationId}/validate-coupon';

  final response = await http.post(Uri.parse(path),
      body: jsonEncode(<String, dynamic>{
        // "application_id": config.applicationId,
        // "client_secret": config.clientSecret,
        // "client_id": config.clientId,
        // "version": config.version,
        "data": <String, dynamic>{
          "couponCode": couponCode,
          "amount": amount,
          "partnerId": userId ?? "",
        },
      }),
      headers: <String, String>{
        'Content-Type': 'application/json; charset=UTF-8',
      });

  if (response.statusCode == 200) {
    // If the server did return a 200 OK response,
    // then parse the JSON.
    var rb = response.body;
    var jsonResponse = jsonDecode(rb);

    ValidateCouponModel res = ValidateCouponModel.fromJson(jsonResponse);

    return res;
  } else {
    // If the server did not return a 200 OK response,
    // then throw an exception.
    throw Exception('Failed to fetch transactions');
  }
}