//Initializing session
app.use(session({
secret: 'keyboard cat',
resave: true,
saveUninitialized: true
//cookie: { secure: true }
}));
I was creating a shopping cart and came across a problem , I was setting cart object in session
req.session.cart = [];
//then
req.session.cart.push({
title : p.title,
price : p.price,
image : '/static/Product_images/'+p._id+'/'+p.image,
quantity:quantity,
subtotal : p.price
});
after that I tried consoling that and I was getting the session variable with cart object inside it but after that while I tried setting it to app.locals.cart for using it with ejs , by trying to get req.session from inside a get method of the express module but the req.session.cart gives undefined.
app.use(require('connect-flash')());
app.use(function (req, res, next) {
res.locals.messages = require('express-messages')(req, res);
// console.log("New cart variable");
//console.log(req.session);
//console.log(req.locals);
//console.log(req.app.locals.cart);
if(req.session.cart!=="undefined"){
app.locals.cart=[];
app.locals.cart = req.session.cart ;
}
next();
});
I was unable to understand why the session variable was losing the cart object
after going through some of questions in StackOverflow I found nothing that solves my dilemma .So I decided to stop using simple console.log but instead I decided to use the nodejs inspector and I installed I ran
node --inspect app.js
But the problem here I faced is that it limited its access to app.js itself the adding shopping cart functionality is in routes/cart.js
I wanted to track the flow of requests using nodejs inspector module and find out why the cart variable is removed from the session variable every time
So my question is of two part ,first part :- why is the sources folder only showing app.js instead of the whole project like in this simple tutorial
I am not getting the project and files inside it to set debug points and source only has app.js as default loaded source
second part is why is cart object getting removed from session without any reason
EDIT:-
cart.js
I know one the first pass it will be undefined but on second path it will not be since it will be set by
var productModel =require('../models/products.js');
var categoryModel =require('../models/category.js');
module.exports=(app)=>{
app.get('/add-to-cart/:id',function(req,res){
console.log("Cart get started");
var quantity,subtotal = 0;
productModel.findOne({'_id':req.params.id},function(err,p){
//console.log("product consoled"+p);
if(err){
return console.log(err);
}
if( typeof req.session.cart == "undefined"){
//console.log("Session undefined check");
quantity=1;
req.session.cart = [];
req.session.cart.push({
title : p.title,
price : p.price,
image : '/static/Product_images/'+p._id+'/'+p.image,
quantity:quantity,
subtotal : p.price
});
console.log("#### The request var session inside cart function start");
console.log("#### The request var session var end");
req.app.locals.cart=[];
req.app.locals.cart.push({
title : p.title,
price : p.price,
image : '/static/Product_images/'+p._id+'/'+p.image,
quantity:quantity,
subtotal : p.price
});
//console.log(req.app.locals);
//console.log("Session set ");
//console.log(req.session.cart);
console.log("Cart got set");
console.log(req.session);
}else{
var product = req.session.cart;
var productFound = false;
product.forEach(function(prod){
if(prod.title==p.title){
prod.quantity+=1;
prod.subtotal=prod.quantity*prod.price;
productFound=true;
}
});
req.session.cart=product;
if(!productFound){
quantity=1;
req.session.cart.push({
title : p.title,
price : p.price,
image : '/static/Product_images/'+p._id+'/'+p.image,
quantity:quantity,
subtotal : p.price
});
}
}
}); console.log("req.session.cart");
console.log(req.session.cart);
req.flash('success','product added to cart');
res.redirect('back');
});
}
EDIT 1:- I tracked the sessionId across the calls and found it to be same ruled about possibility of creation of new session but still what removes the cart object from session object remains a mystery
