how to query inside subdocument in mongoose

Question

I have blogs nested in User

const blogSchema = new mongoose.Schema({
    title:  String, 
    body:   String,
    comments: [{ body: String, date: Date }],
    image:{type:String,required:true},
    date: { type: Date, default: Date.now }})

const userSchema = new mongoose.Schema({
    name:String,
    email:String,
    password:String,
    blogs:[blogSchema]

})

const User = mongoose.model('User', userSchema); 



app.get("/blog",(req,res)=>{
    const {id,user} = req.query

    User.findOne({_id:user},(err,results)=>{
        if(!err){
            console.log(results.blogs)
        }else{
            console.log(err)
        }
        })


    })

I have User._id as user and blogs._id as id I am getting all the blogs but I want to get a single blog form array of objects by id