Day 38 of #100DaysOfCode — Authentication Part II: JWT

JWT (JSON Web Token) is a widely used method for handling authentication in modern web applications and APIs . It allows a server to securely send information about a user to a client after login in the form of a digitally signed token . When a user logs into an application, they usually enter their email and password to prove their identity. However, web servers are stateless , which means they don’t remember previous requests. Because of this “forgetful nature,” the server would normally need to re-authenticate the user on every request , which would be inefficient. This is where JWT (JSON Web Token) comes in. After a successful login, the server generates a signed token and sends it to the client. The client stores this token and sends it with future requests, allowing the server to quickly verify the user’s identity without asking for the password again . Day 38 was all about what JWT is and how and why it is used What JWT Is JWT stands for JSON Web Token. It is a secure token gene