rec-recommend.js

app.get("/recommend", (req, res) => {
    let userId = req.query.userId
    if (Number(userId) > 53424 || Number(userId) < 0) {
        res.send("User Id cannot be greater than 53,424 or less than 0!")
    } else {
        recs = model.recommend(userId)
            .then((recs) => {
                res.render("index", { recommendations: recs, forUser: true })
            })
    }

})