public void OnActionExecuting(ActionExecutingContext context)
{
foreach (var argument in context.ActionArguments.Values.Where(v => v is RegisterRequest))
{
RegisterRequest command = argument as RegisterRequest;
_userValidationService.RequireUniqueUsernameAndEmail(command.Username, command.Email, context.ModelState);
}
if (!context.ModelState.IsValid)
{
context.Result = new BadRequestObjectResult(context.ModelState);
}
}