node.js로 회원정보를 수정하는 페이지를 만들려고 하는데 회원정보 중 mysql에서 id값을 불러와서 화면에 표시하려는데 값이 세션값으로 표시돼요. 그리고 정보수정도 안됩니다ㅠㅠ 해결방법 부탁드립니다.

//app.js
app.get('/modify',(req,res)=>{
    console.log('회원정보수정 페이지');
    console.log(req.session);
    const id = req.body.id;
    if(req.session.is_logined == true){
        //req=circularJSON.stringify(req);
        console.log("req: " + req);

        client.query('SELECT * FROM member WHERE id=?', [id],(error, row)=> {
            if (error) {
                console.log('error:' + error);
            }
        res.render('modify',{
            is_logined : req.session.is_logined,
            name : req.session.name,
            id : req.session.id,
            row : row[0]

        });
        console.log(id);
    });
    }else{
        res.render('index',{
            is_logined : false
        });
    }
    });

    app.post('/modify',(req,res)=>{
        console.log('회원수정 하는중')
        const body = req.body;
        const id = body.id;
        const pw = body.pw;
        const name = body.name;
        const age = body.age;

        client.query('UPDATE member SET pw=?, name=?, age=? WHERE id=?', [
            pw, name, age, id
        ], (err, rows) => {
            if(err) {
                console.log(err);
                res.status(500).send('Internal Server Error');
            } else {
                console.log("rows: " + rows);
                res.redirect('/', {rows:rows[0]});

            }
        });
    });

//modify.ejs
<section>
        <div class="container">
            <form action="/modify" method="post" class="form-signin">
                <h2 class="form-signin-heading">회원정보수정</h2>
                <label>아이디</label>
                <div> <%= id %>
                </div>
                    <label>비밀번호</label>
                    <input type="password" name="pw" class="form-control" placeholder="Password" required>
                    <label>이름</label>
                    <input type="text" name="name" class="form-control" placeholder="name" required>
                    <label>나이</label>
                    <input type="number" name="age" class="form-control" placeholder="age" required>
                <p></p>
                    <button class="btn btn-lg btn-primary btn-block" type="submit" value="회원가입">수정완료</button>

            </form>
        </div>
    </section>