ASP.NET Web API 2控制器中的模型验证并在不同的验证上返回不同的状态代码失败

Question

HERE is a good but basic article for Model Validation in ASP.NET Web API 2 Controller. But it does not discuss how could we send custom messages with custom HttpStatusCodes .

For example, I want to return status code as 499 and message as ' Name Required ' when 'Name' field not provided

I want my HTTP response to look something like

HTTP/1.1 **499** 
Bad Request  Content-Type: application/json; charset=utf-8 
Date: Tue, 16 Jul 2013 21:02:29 GMT  
Content-Length: 331

{   
    "Message": "The request is invalid. *Please check*.",
    "ModelState": {
      "product": [
        "Required property 'Name' not found in JSON. Path '', line 1, position 17."
    ],
     "product.Name": [
      "**Name Required**"
    ]
   }
 }

I want custom status code and custom message as shown in provided response.

How could I achieve this?

Answer 1

This is unlikely to be a good idea, http status codes have specific meanings and although 499 isn't a standard code nginx does use it and you'll be limited to the gaps that are currently in the specs. Just return a custom code in your response body instead.