Doubt with Rest service and with put verb

Question

I just need to update two fields of my model. At get I pass a DTO to my App. The question is: When I go to do my update(put verb) do I need to load all the property or just the one I will update? Like this:

[Route("atualiza/{id}")]
        public void AtualizaLiberacao(LiberacaoDTO libera,int id)
        {
            var lista = contexto.Liberacoes
                .Where(l => l.IdOrcamento == id)
                .Select(s =>
                {
                    s.AutorizouReceberAtrazado = float.Parse(libera.AutorizouReceberAtrazado),
                    s.FlagLiberacao = 0
                });
        }

Only these fields will receive new values, too not. And how do I pass the text that will be updated? The id ok, but the text. I put a Liberacaodto only as an example, but I can pass the text as a string, that’s my question. In place of the object I can pass the text(string) to be modified. All this is only illustrative. You can pass two parameters through the URL instead of just id?

My service:

[AcceptVerbs("Put")]
 public void putItensLiberacao(int id, [FromBody]string value)
 {

 }

EDIT1

[Route("atualiza/{id}")]
        public void AtualizaLiberacao(LiberacaoDTO libera)
        {
                contexto.Liberacoes
                .Where(l => l.IdOrcamento == libera.IdOrcamento)
                .Select(s =>
                {
                    s.AutorizouReceberAtrazado = libera.AutorizouReceberAtrazado;
                    s.FlagLiberacao = libera.FlagLiberacao;
                });
        }

The form above is the correct one? And how is the route with the id? What will it serve?

I guess that’s it:

[Route("atualiza/{id}/{value}")]
    public void AtualizaLiberacao(int id, string value)
    {
        var lista = contexto.Liberacoes
                    .Where(l => l.IdOrcamento == id).ToList();

        lista.ForEach(f =>
        {
            f.FlagLiberacao = 0;
            f.AutorizouReceberAtrazado = value;
        });

        contexto.SaveChanges();

    }

Answer 1

When I go to do my update(put verb) I need to load all the property or just the one I’ll update?

No, Voce can charge only what Voce will use.

[Route("atualiza/{id}/{value1}/{value2}")]
        public void AtualizaLiberacao(int value1, float value2, int id)
        {
            var lista = contexto.Liberacoes
                .Where(l => l.IdOrcamento == id)
                .Select(s =>
                {
                    s.AutorizouReceberAtrazado = value2,
                    s.FlagLiberacao = value1
                });
        }

You can pass two parameters through the URL instead of just id?

Yes, you can pass as many paramenters as you want. example: [Route("atualiza/{id}/{value}")]

That?