private static void HandleValidationException(Exception exception, ErrorResponce errorDto)
{
{
var ex = (ValidationException)exception;
errorDto.Message = ex.Message;
errorDto.Errors = ex.Failures.Select(x => x.Value)
.SelectMany(x => x)
.Distinct()
.ToList();
}
}
private static void HandleApplicationException(Exception exception, ErrorResponce errorDto)
{
var failures = exception.WithFailures().ToList();
if (!failures.Any())
{
return;
}
errorDto.Message = failures.FirstOrDefault();
failures.RemoveAt(0);
errorDto.Errors = failures;
}
private async Task WriteResponce(ErrorResponce responseObj, HttpContext context, HttpStatusCode statusCode)
{
var response = context.Response;
var content = JsonConvert.SerializeObject(responseObj, new JsonSerializerSettings()
{
ContractResolver = new DefaultContractResolver()
{
NamingStrategy = new CamelCaseNamingStrategy()
}
});
response.ContentType = "application/json";
response.StatusCode = (int)statusCode;
await response.WriteAsync(content);
}
private async Task HandleExceptionAsync(HttpContext context, Exception exception)
{
var statusCode = HttpStatusCode.BadRequest;
var errorDto = new ErrorResponce();
if (exception is ValidationException)
{
HandleValidationException(exception, errorDto);
}
else if (exception is System.Security.Authentication.InvalidCredentialException)
{
HandleInvalidCredential(errorDto);
}
else
{
HandleApplicationException(exception, errorDto);
}
GetResponseStatus(exception, ref statusCode);
await WriteResponce(errorDto, context, statusCode);
}
private void HandleInvalidCredential(ErrorResponce errorDto)
{
errorDto.Message = "Invalid username or password.";
}