Creating a full-stack MERN app using JWT authentication: Part 1

In the exploration of implementing JSON Web Token (JWT) authentication in a microservice-based architecture using React for the frontend and .NET Core API for the backend, the author shares their experience of building a MERN stack application. The process involves generating, validating, and decoding JWTs to securely represent claims between two parties, with the backend generating the token using algorithms like HS512 and RS512. The author uses the jsrsasign library for handling JWTs and emphasizes keeping the private key secure while demonstrating how to generate and decode JWTs. They also touch on the importance of validating tokens to prevent tampering and explain the role of JWT in enhancing secure transmission in single-page applications. The project is part of a broader discussion on authentication mechanisms, and while the author mentions the possibility of integrating MongoDB, it is not within the scope of this particular exploration.