store.set(id,session,callback) function not effective

[hookbin]

store.set(id,session,callback) function not effective
session.uid not set

    // $session
    get: function (id) {
        return new Promise((resolve, reject) => {
            sessionStore.get(id, (err, session) => {
                console.log("$session.get " + id, err, session)
                if (err || !session) {
                    resolve(null);
                } else {
                    resolve(session);
                }
            });
        });
    },
    save: function (id, session) {
        return new Promise((resolve, reject) => {
            sessionStore.set(id, session, (err) => {
                console.log("$session.set", session, err)
                if (err) {
                    reject(err);
                } else {
                    resolve(session);
                }
            });
        });
    },

// function
async function login(session, { sid, uid }) {
    const querySession = await $session.get(sid);
    session.uid = ""
    if (querySession == null) {
        throw new Error('Session not found')
    } else {
        console.log("login querySession", querySession)
        querySession.uid = uid
        await $session.save(querySession.id, querySession)
    }
    const userModel = await info(session, { uid })
    return userModel
}

// log
$session.get LCSKZDdG null {
  cookie: {
    originalMaxAge: null,
    expires: null,
    secure: false,
    httpOnly: true,
    path: '/'
  },
  uid: ''
}
login querySession save before {
  cookie: {
    originalMaxAge: null,
    expires: null,
    secure: false,
    httpOnly: true,
    path: '/'
  },
  uid: ''
}
$session.set {
  cookie: {
    originalMaxAge: null,
    expires: null,
    secure: false,
    httpOnly: true,
    path: '/'
  },
  uid: 'dP45Uu'
} null
$session.get LCSKZDdG null {
  cookie: {
    originalMaxAge: null,
    expires: null,
    secure: false,
    httpOnly: true,
    path: '/'
  },
  uid: ''
}
login querySession save after {
  cookie: {
    originalMaxAge: null,
    expires: null,
    secure: false,
    httpOnly: true,
    path: '/'
  },
  uid: ''
}