Node.js Server with Secure Authentication and Short URL Functionality

This project is a Node.js server that provides secure authentication using JSON Web Tokens (JWT) and user validations. Additionally, it offers functionality to create short URLs. It utilizes the following libraries:

• jsonwebtoken: For user authentication and validation.
• bcrypt: For hashing passwords before storing them in the database.
• mongodb: Used as the database for storing user data and short URLs.
• mongoose: For defining user schemas and models.
• zod: For input validations on the server.

API Routes

• POST /user/signup: Endpoint for user signup. Allows users to register with the system.
• POST /user/signin: Endpoint for user signin. Allows registered users to login to the system.
• POST /url: Endpoint for creating a short URL. Requires authentication.
• GET /url/:surl: Endpoint for accessing the original URL associated with a short URL. Requires authentication.

Explanation

• After a user creates an account, they provide a URL to the server to get a Short URL.
• The server checks if the user is authorized using a JWT token. If the user is authorized,
• The server creates a random short ID, which we'll call it as short URL, and stores it in the database. The short URL is then sent back to the user.
• When a user wants to access a URL, they provide the short URL to the server through parameters.
• For example: http://localhost:3000/url/69097
• Here, 69097 is the short URL. The server receives the short URL and finds the corresponding original URL in the database.
• It then redirects the user to the original URL.