A REST API With Node, Express, TypeScript & MongoDB + Authentication

Medium Links:

English: https://medium.com/@enescidem/jwt-authentication-user-management-with-typescript-express-bcac5ed28248

Turkish: https://medium.com/@enescidem/typescript-express-ile-jwt-kimlik-doğrulama-ve-kullanıcı-yönetim-sistemi-b4ec1c66f723

This project demonstrates a RESTful API built with Node.js, Express, TypeScript, and MongoDB, featuring user authentication and CRUD operations. It was developed to practice backend architecture, authentication flows, database integration, and API testing using Restfox.

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🚀 Features

• Built with Node.js and Express
• Written in TypeScript
• Database: MongoDB
• Authentication (login & register endpoints)
• CRUD operations for data management
• API testing with Restfox

📌 Overview

The API allows users to:

• Register and log in securely with JWT authentication
• Perform CRUD operations on stored data
• Connect to a MongoDB database
• Test endpoints easily using Restfox

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⚙️ Project Setup

git clone https://github.com/username/repository-name.git
cd repository-name
npm install
npm run dev

Server runs at: http://localhost:8000

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🔑 Authentication Flow

1. Register → Create a new user with encrypted password.
2. Login → Authenticate and receive a token.
3. Use Token → Access protected routes (CRUD operations).

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📸 Project in Action

1. Register a New User with Restfox

2. User Saved in MongoDB

3. Wrong Login Attempt

4. Correct Login – Token Returned

5. Login with Cookies Stored

6. Get All Users (Authorized Request)

7. Register Another User via Restfox

8. Verify Second User in MongoDB

9. Fetch Users Again

10. Delete a User – Restfox

11. Verify User Deleted – MongoDB

12. Fetch Users After Deletion

13. Register One More User

14. Get Users – Restfox

15. Try Deleting Without Login (Unauthorized)

16. Login Again

17. Delete User With Login (Authorized)

18. Update User Information

19. Verify Updated Data in MongoDB

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🛠️ Technologies Used

• Node.js & Express
• TypeScript
• MongoDB & Mongoose
• JWT Authentication
• Restfox

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📌 Conclusion

This project shows how to build a secure REST API with authentication, database operations, and clean TypeScript code. The screenshots illustrate the full flow — from registration to login, CRUD operations, and database verification.

It can be extended with:

• Role-based authorization
• Advanced input validation
• Deployment on platforms like AWS, Render, or Docker