router.get("/:id/:storename", (req, res) => {

    var storeId = req.params.id;
    var storeName = req.params.storename;

// Check if cart exists on current session, else create empty cart
    var cart = new Cart(req.session.cart ? req.session.cart : {});

// Check if the store exists in database
    Seller.findOne({storeName: storeName}, (err, seller) => {
    if(err){
    console.log(err);
    }else{

// get all product categories in database
        Category.find({createdBy: seller.username}, (err, categories) => {
    if(err){
    console.log(err);
    }else{

// get all products in database                     Product.find({createdBy: seller.username}, (err, products) => {
    if(err){
    console.log(err);
    }else{
    res.render("store.ejs", {seller: seller, categories: categories,          products: products, storeId: storeId, storeName: storeName});
         }});
       }});
          }});
    });