public int GetErrorCode(BaseApiException exception)
{
try
{
var exceptionType = exception.GetType();
if (!_map.ContainsKey(exceptionType))
{
throw new ArgumentException(
$"Exception {exceptionType.FullName} has not been mapped accordingly. Should be treated as an unexpected exception");
}
var exceptionDescriptionType = typeof(ExceptionDescription <>).MakeGenericType(exceptionType);
var instance = Convert.ChangeType(_map[exceptionType], exceptionDescriptionType);
var property = exceptionDescriptionType.GetProperty("ErrorCode");
var method = property?.PropertyType.GetMethod("Invoke");
var errorCode = method?.Invoke(property.GetValue(instance), new object[] { exception });
if (errorCode == null)
{
throw new ArgumentException(
$"Exception {exceptionType.FullName} has not been mapped accordingly. Should be treated as an unexpected exception");
}
return((int)errorCode);
}
catch
{
throw new ArgumentException(
$"Exception {exception.GetType().FullName} has not been mapped accordingly. Should be treated as an unexpected exception");
}
}
public HttpStatusCode GetExceptionHandlerReturnCode(BaseApiException exception)
{
var exceptionType = exception.GetType();
if (!exceptionType.IsSubclassOf(typeof(BaseApiException)))
{
throw new ArgumentException("exception needs to be a subclass of BaseApiException");
}
if (!_map.ContainsKey(exceptionType))
{
throw new ArgumentException($"Exception {exceptionType.FullName} has not been mapped. Should be treated as an unexpected exception");
}
return(_map[exceptionType].ExceptionHandlerReturnCode);
}
public override void OnException(ExceptionContext context)
{
var baseException = context.Exception.GetBaseException();
int statusCode = StatusCodes.Status500InternalServerError;
BaseApiException baseApiException = null;
if (baseException is BaseApiException)
{
baseApiException = ((BaseApiException)baseException);
statusCode = baseApiException.ResponseHttpStatusCode;
}
context.HttpContext.Response.StatusCode = statusCode;
context.Result = new JsonResult(new
{
StatusCode = statusCode,
error = baseException.Message,
error_description = baseApiException?.BackEndMessage
});
base.OnException(context);
}
