Why does no one disposes DbContext after WebApi controller operation?

Question

I am aware of various tutorials as well as complete examples targeting WebApi & Entity Framework (even from Microsoft) that have WebApi

Answer 1

Prime case for using, no matter how the method is exited, your DbContext will be disposed;

public HttpResponseMessage GetInternet(int id) {
    using(var context = new InternetDbContext()) {
        var result =
           (from internet in context.Internets
            where internet.Id.Equals(id)
            select internet).FirstOrDefault();
        if(result != null)
           Request.CreateResponse(HttpStatusCode.OK, result);
    }
}