public HttpResponseMessage PutMunicipios(Municipio municipio)
        {
            if (municipio == null) return Request.CreateResponse(HttpStatusCode.BadRequest);

            try
            {
                db.Entry<Municipio>(municipio).State = System.Data.Entity.EntityState.Modified;
                db.SaveChanges();

                var result = municipio;
                return Request.CreateResponse(HttpStatusCode.OK, result);
            }
            catch (Exception)
            {
                return Request.CreateResponse(HttpStatusCode.InternalServerError, "Falha ao alterar municipio.");
            }
        }
        public HttpResponseMessage PostMunicipios(Municipio municipio)
        {
            if (municipio == null) return Request.CreateResponse(HttpStatusCode.BadRequest);

            try
            {
                db.Municipios.Add(municipio);
                db.SaveChanges();

                var result = municipio;
                return Request.CreateResponse(HttpStatusCode.Created, result);
            }
            catch (Exception)
            {
                return Request.CreateResponse(HttpStatusCode.InternalServerError, "Falha ao inserir municipio.");
            }
        }