webapi 2 bind model from json

Question

I need to bind model from request and convert to my custom object, my request data is json and method is post.

This is my method in web api:

public IHttpActionResult Edit([ModelBinder(typeof(KModelBinder))] object data) 

My problem is: I cannot access to json from ValueProvider in modelbinder.

public class KModelBinder : IModelBinder {
    public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext) {
        var valueProvider = bindingContext.ValueProvider;
        var valProviderResult = valueProvider.GetValue("id");
        // ....
    }
}

Answer 1

You can try a base controller class like this

public class BaseController<T>: ApiController
{

    //here you can add whatever dependency injection you may use
    public BaseController(DbContext context) 
    {
        _context = context;  
    }

   [HttpPost]
   public IHttpActionResult Add(T data)
   {
       return Ok(_context.Add(data));
   }

   [HttpPut]
   public IHttpActionResult Edit(T data)
   {
        _context.Modify(data); //here depends on your ORM or data access layer
        return Ok(data);
   }

   /*other methods you think are necessary in this base controller*/
}

Afterwards you can define your controllers like this

public class UserController: BaseController<User>
{
   //here you can override the base controller methods
}

I use somewhat similarly approach in my current project and works fine.

Check it out and see if this works for your project.