Session
Session is a key component to describe how the internet works behind the scenes. Its function is to assist websites in remembering the users as well as their actions across multiple pages. It enables web applications and makes logging in and online shopping easier as well as seamless.
What is a session on the web?
Well, a session is a connection or a link between two or more communication devices. For instance, it is a temporary link between a user and a server. It collects data when a user navigates an application or a website, and it starts when a user logs in to a website, and ends when they leave. It is important to note that each session has a unique identifiers and a session ID. These are created by the server. These components assist in tracking users when they visit different pages.
Why is a web session used?
It is used to enable internet systems to keep an eye on user actions. It aids in storing information, such as- login state, items in cart, or any other settings. Without it, the website will not remember anything between clicks. It ensures smooth management of user interaction on the internet, especially when using multiple pages.
Cookie vs. Session: difference
The key difference between cookies and sessions is that- cookies are stored in web browsers, whereas sessions are stored in servers. Sessions no longer remain when the browser is closed; however, cookies still exist. Session management relies on servers generate session IDs. On the other hand, cookies are small files storing information locally.
Pros & Cons
They are very secure as they store data on a server. They are great for temporary information storage. But they use server memory as well as expire very fast. Still, sessions are pretty important for those web applications that handle multiple requests, especially with newer technologies.
Examples
Log in, Shopping cart, and admin dashboard sessions
These examples use session IDs to track actions across web pages and, at the same time, make sure users logged in stay connected.