prepareDioFunction method

bool Function(DioException exception)? prepareDioFunction({ BuildContext? context, required DioExceptionType type, required DioExceptionHandlerModel? exceptionHandlers, })

Prepares a DioException handling function based on the provided context and exception type.

• context is the current build context.
• type is the type of DioException.
• exceptionHandlers contains a set of custom Dio exception handling functions.
• generalFunction is a function to handle exceptions when a specific function is not provided, and context is null. It is only invoked in this case.

Returns a function to handle the specific DioException.

Implementation

bool Function(DioException exception)? prepareDioFunction({
  BuildContext? context,
  required DioExceptionType type,
  required DioExceptionHandlerModel? exceptionHandlers,
}) {
  if (context == null) {
    return (DioException exception) {
      debugPrint(exception.message);
      return true;
    };
  }

  switch (type) {
    // Handle connection timeout exception.
    case DioExceptionType.connectionTimeout:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.connectionTimeoutModel?.title ??
                "Connection Timeout",
            exceptionHandlers?.connectionTimeoutModel?.content ??
                "The connection timed out. Please try again.",
            exceptionHandlers?.connectionTimeoutModel?.buttonContent ??
                "Close",
          );

    // Handle send timeout exception.
    case DioExceptionType.sendTimeout:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.sendTimeoutModel?.title ?? "Send Timeout",
            exceptionHandlers?.sendTimeoutModel?.content ??
                "Sending data timed out. Please try again.",
            exceptionHandlers?.sendTimeoutModel?.buttonContent ?? "Close",
          );

    // Handle receive timeout exception.
    case DioExceptionType.receiveTimeout:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.receiveTimeoutModel?.title ??
                "Receive Timeout",
            exceptionHandlers?.receiveTimeoutModel?.content ??
                "Receiving data timed out. Please try again.",
            exceptionHandlers?.receiveTimeoutModel?.buttonContent ?? "Close",
          );

    // Handle invalid certificate exception.
    case DioExceptionType.badCertificate:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.badCertificateModel?.title ??
                "Invalid Certificate",
            exceptionHandlers?.badCertificateModel?.content ??
                "The server's certificate is invalid. Please connect to a secure network for communication.",
            exceptionHandlers?.badCertificateModel?.buttonContent ?? "Close",
          );

    // Handle bad response exception.
    case DioExceptionType.badResponse:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.badResponseModel?.title ?? "Bad Response",
            exceptionHandlers?.badResponseModel?.content ??
                "A bad response was received from the server.",
            exceptionHandlers?.badResponseModel?.buttonContent ?? "Close",
          );

    // Handle cancelled exception.
    case DioExceptionType.cancel:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.cancelModel?.title ?? "Cancelled",
            exceptionHandlers?.cancelModel?.content ??
                "The operation was cancelled.",
            exceptionHandlers?.cancelModel?.buttonContent ?? "Close",
          );

    // Handle connection error exception.
    case DioExceptionType.connectionError:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.connectionErrorModel?.title ??
                "Connection Error",
            exceptionHandlers?.connectionErrorModel?.content ??
                "A connection error occurred. Please check your network connection.",
            exceptionHandlers?.connectionErrorModel?.buttonContent ?? "Close",
          );

    // Handle unknown exception.
    case DioExceptionType.unknown:
      return (DioException exception) => showAlertDialog(
            context,
            exceptionHandlers?.unknownModel?.title ?? "Unknown Error",
            exceptionHandlers?.unknownModel?.content ??
                "An unexpected error occurred.",
            exceptionHandlers?.unknownModel?.buttonContent ?? "Close",
          );
  }
}