// This will map Exceptions to the corresponding Conflict status code.
private void _configureExceptionProblemDetails(ProblemDetailsOptions options)
{
options.Map <EntityNotFoundException>(ex => new ExceptionProblemDetails(ex, StatusCodes.Status404NotFound));
options.Map <NotImplementedException>(ex => new ExceptionProblemDetails(ex, StatusCodes.Status501NotImplemented));
options.Map <HttpRequestException>(ex => new ExceptionProblemDetails(ex, StatusCodes.Status503ServiceUnavailable));
options.Map <UnauthorizedAccessException>(ex => new ExceptionProblemDetails(ex, StatusCodes.Status403Forbidden));
options.Map <EntityTagMismatchException>(ex => new ExceptionProblemDetails(ex, StatusCodes.Status412PreconditionFailed));
options.Map <OptimisticConcurrencyException>(ex => new ExceptionProblemDetails(ex, StatusCodes.Status409Conflict));
options.Map <SqlException>(ex => SqlExceptionHandler.IsPrimaryKeyOrUniqueKeyViolation(ex)
? new ExceptionProblemDetails(ex, StatusCodes.Status409Conflict)
: new ExceptionProblemDetails(ex, StatusCodes.Status500InternalServerError));
options.Map <FluentValidation.ValidationException>(ex => new FluentValidationProblemDetails(ex, StatusCodes.Status400BadRequest));
}
public override void OnException(ExceptionContext context)
{
_log(context);
var message = context.Exception.Message;
IActionResult result = null;
switch (context.Exception)
{
case UnauthorizedAccessException ex:
{
result = new ObjectResult(new
{
ErrorMessage = message
})
{
StatusCode = 403
};
break;
}
case EntityNotFoundException ex:
{
result = new NotFoundObjectResult(message);
break;
}
case EntityTagMismatchException ex:
{
result = new StatusCodeResult(412);
break;
}
case OptimisticConcurrencyException ex:
{
result = new ObjectResult(new
{
ErrorMessage = message
})
{
StatusCode = 409
};
break;
}
case FluentValidation.ValidationException ex:
{
var msd = new ModelStateDictionary();
foreach (var error in ex.Errors)
{
string key = error.PropertyName;
msd.AddModelError(key, error.ErrorMessage);
}
result = new BadRequestObjectResult(msd);
break;
}
case SqlException ex:
{
if (SqlExceptionHandler.IsPrimaryKeyOrUniqueKeyViolation(ex))
{
result = new ObjectResult(new
{
ErrorMessage = message
})
{
StatusCode = 409
};
}
break;
}
}
if (result != null)
{
if (result is ObjectResult o)
{
o.ContentTypes.Clear();
o.ContentTypes.Add("application/json");
}
context.Result = result;
context.Exception = null;
}
base.OnException(context);
}