I keep trying to generate a jwt token, but after i input the code, the token won’t generate when i look at application cookies.

app.post(
  "/login",
  [
    check("email", "Emaill length error")
      .isEmail()
      .isLength({ min: 10, max: 30 }),
    check("password", "password length 8-10").isLength({ min: 8, max: 10 }),
  ],
  (req, res) => {
    const sql = "SELECT * FROM account WHERE email = ? AND password = ?";
    db.query(sql, [req.body.email, req.body.password], (err, data) => {
      const errors = validationResult(req);
      if (!errors.isEmpty()) {
        return res.json(errors);
      } else {
        if (err) {
          return res.json("Error");
        }
        if (data.length > 0) {
          const token = jwt.sign({ role: "user" }, "jwt_secret_key", {
            expiresIn: "1d",
          });
          res.cookie("token", token);
          return res.json("Success");
        } else {
          return res.json("Failed");
        }
      }
    });
  }
);