public void OnActionExecuting(ActionExecutingContext context)
{
if (context.ModelState.IsValid)
{
return;
}
var errors = context.ModelState.Values
.SelectMany(v => v.Errors)
.Select(e => e.ErrorMessage)
.Aggregate("", (s, a) => $"{a}, {s}");
context.Result = new BadRequestObjectResult(ApiMessage.MakeError(1, errors));
}