How to get JSON object by Query string

Question

I have to work with queries like: Controller/Action?query ={"action":"test","id":"13037313353","pin":"452312"} by GET.

My ViewModel:

 public class ValidatePinViewModel
    {
        public ActionType action { get; set; }

        public int Id { get; set; }

        public int Pin { get; set; }
    }

Controller

 public JsonResult ValidateVisit(CommonViewModel model)
        {
            //model is null          

            return Json(new InvalidPin());
        }

Now I got null for my view. How I can get the correct model

George Johnston · Accepted Answer · 2013-04-29 17:19:20Z

1

As there is very little supportive information on this question, I'm going to take a shot and say that you're not POSTING to an action. e.g.

[HttpPost] // <-- Make sure you define your POST action
public JsonResult ValidateVisit(CommonViewModel model)
{
   ...
}

A GET, as you speficy in your tags, is not going to post a model. Unless you are specifically denoting it both in where you define your form element as well as on the action itself, it will be null.

answered Apr 29, 2013 at 17:19

George Johnston

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3 Comments

Ivan Korytin Over a year ago

Yep, I am working with another service, which send this type of query by GET.

George Johnston Over a year ago

Then the other service is wrong. If the other service is posting data, it should use POST.

Ivan Korytin Over a year ago

I know. I can`t change it. I can only use it.

George Johnston · Accepted Answer · 2013-05-14 12:38:41Z

1

I could add a string to get object.

Something like:

 public JsonResult ValidateVisit(string query)
 {
    ValidatePinViewModel model = Json.Deserialize<ValidatePinViewModel>(query);       
    return Json(new InvalidPin());
 }

edited May 14, 2013 at 12:38

George Johnston

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answered May 14, 2013 at 11:59

Ivan Korytin

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