Unable to use with existing list

[DiponRoy]

Here I already have a list called users and I am trying to apply a filter. In the apply method, i passed users.AsQueryable(), but its not working as expected. I don't find any overloads from IEnumerable.

[HttpGet]
public JsonResult GetPosts(SieveModel sieveModel) 
{
    List<User> users = new List<User>(); 
    var result = users.AsQueryable();                       // Makes read-only queries faster
    result = _sieveProcessor.Apply(sieveModel, result);     // Returns `result` after applying the sort/filter/page query in `SieveModel` to it
    return Json(result.ToList());
}

Is there any option to make it work?

[DiponRoy]

was missing the mapping config