Guys i want to find all budgets, from Budget, where my category (aka companies) is the value we write in the link of a website ex: /admin/budgets/:id (id in the link would be 2111, a number of a company)

How can i extract from sequelize rows, that contains only the id?

router.get("/admin/budgets/:id", adminAuth, (req,res) => {
    var id = req.params.id;
    if(isNaN(id)){
        res.redirect("/admin/budgets");
    }


    Budget.findByPk(id).then(budget => {
        if(budget != undefined){
            
            Category.findByPk(id).then(categories=> {
                res.render("admin/budgets/:id", {categories:categories, budget:budget})
            })
        }else {
            res.redirect("/admin/budgets");
        }
    }).catch(erro  => {
        res.redirect("/admin/budgets");
    })
})

Category.hasMany(Budget); // 1-p-M Budget.belongsTo(Category); //1-p-1