WEB API C# - 过滤器参数验证

Question

我正在尝试使用最佳实践通过示例进行简单验证来创建 API。

public class ClientController
{
       [HttpGet]
       [Authorize] 
       public IHttpActionResult Clients([FromUri]string Initialdate,[FromUri] string finalDate)
       {
           return _clientRepository.GetClients();
       }
}


public class ClientRepository
{
        //some code that access data layer
        public IEnumerable<Client> GetClients(string initialDate,string finalDate)
        {
             //HERE IS WHAT IM LOOKING FOR
             //HERE I WANT TO VALIDATE THE DATE PARAMETER PROVIDED IN REQUEST AND RETURN 
             //VALIDATION LIST WITH ERROR DESCRIPTION IN JSON

             _daoClient.ExecuteProcedure(initialDate,finalDate);
        }
}


public class Client
{
    public int Id {get;set;}
    public string Name {get;set;}
}

那么，我如何使用参数过滤器之类的操作在请求中构建这种简单的参数验证？

Answer 1

你必须像这样明确地验证：

[HttpGet]
[Authorize]
public IHttpActionResult Clients([FromUri]string Initialdate, [FromUri] string finalDate)
{
         bool isInitialDate = DateTime.TryParse(Initialdate, out DateTime tempInitialdate);
         bool isFinalDate = DateTime.TryParse(finalDate, out DateTime tempfinalDate);

         List<string> _errorMessage = new List<string>();

         if (!isInitialDate)
              _errorMessage.Add("Initial date is invalid");

         if(!isFinalDate)
             _errorMessage.Add("Final date is invalid");

         if(isInitialDate && isFinalDate)
         {
                //your business logic
                return _clientRepository.GetClients();
         }

            return Json(new { success = false, error = _errorMessage });
}