We will be using express-session middleware to manage sessions in Node.js The session is stored in the express server itself. Node.js provides us with the express-session package, middleware for ExpressJS. In order to create a shopping cart we need a simple storage system where we can collect products and the cart's total. Node.js runs single-threaded, non-blocking, asynchronous programming, which is very memory efficient. Node.js helps developers make the best use of event loops and callbacks for I/O operations. Storing shopping cart data in Redis is a good idea since you can retrieve the items very fast at any time and persist this data if needed.īuilding an ecommerce app with Node.js makes a lot more sense because it ensures the balance between frontend and backend load time due to its asynchronous nature (the ability to handle multiple concurrent users at a time). However, this will require you to send the cookies with every web request, which can slow down the request in case of large cookies. ![]() The advantage of doing this is that you wouldn't need to store such temporary data in your database. Cookies are small text files stored in a web user's browser directory or data folder. ![]() Usually, the shopping cart data is stored on the client-side as a cookie. ![]() This tutorial will show you how to harness the power of Redis by creating a basic ecommerce shopping cart application with Node.js. Setting up the backend (Node.js Express).
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