post method

Future<BaseResponseModel> post(String apiKey, BuildContext context, { String? apiUrl, dynamic bodyData, Options? options, })

post method will be used to call POST method in all the methods which is making use of POST methods. apiUrl will be used to specify the particular url that will be used for the API call. bodyData will be used to set the body data for the POST method if any. options will be the POST request Options given by the Dio package.

Implementation

Future<BaseResponseModel> post(String apiKey, BuildContext context,
    {String? apiUrl, dynamic bodyData, Options? options}) async {
  /// Processing Basic Auth according to apiKey passed.
  String basicAuth =
      'Basic ${base64.encode(utf8.encode('$apiKey:$password'))}';

  /// Passing the basic auth in the "Authorization" header of the Dio request.
  dio.options.headers["Authorization"] = basicAuth;
  try {
    // Calling Dio's post request by passing the apiUrl, bodyData and options received in parameter.
    final apiResponse =
        await dio.post(apiUrl ?? "", data: bodyData, options: options);

    if (apiResponse.statusCode == 200) {
      // Storing the api response in a variable "response" and then decoding it in Json format.
      var response = apiResponse.data;
      var jsonData = jsonDecode(jsonEncode(response));

      return BaseResponseModel(
          result: jsonData, success: true, message: "Success");
    } else {
      return BaseResponseModel(
          result: null, success: false, message: "Success");
    }
  } catch (err) {
    if (err is DioException) {
      /// Showing SnackBar when there is any API exception takes place.
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
          content: Text(
              "${err.response?.statusMessage} [${err.response?.statusCode}]")));

      /// Return a null constructor with respective error message and false success flag.
      return BaseResponseModel(
          result: null, success: false, message: err.response?.statusMessage);
    } else {
      /// Showing SnackBar when there is some other exception which is not related to API request.
      ScaffoldMessenger.of(context)
          .showSnackBar(SnackBar(content: Text("Something went wrong!")));

      /// Return a null constructor with respective error message and false success flag.
      return BaseResponseModel(
          result: null, success: false, message: "Something went wrong!");
    }
  }
}