Welcome to the world of scalable web applications! In this blog, we’ll delve into a structured approach to building a Node.js application using TypeScript, Express, MongoDB, and Mongoose as the ORM. Whether you are a beginner or an experienced developer looking to optimize your projects, this guide is user-friendly and packed with insights!

Introduction to the Project Structure

This repository showcases an architecturally sound Node.js application that implements an authentication system using JSON Web Tokens (JWT) for secure user management. Think of it as a well-organized bookshelf where each layer of the stack has its own place while remaining interconnected, allowing easy access to information.

Layered Architecture Overview

We utilize a Clean Architecture model. This layered architecture includes:

• Data Layer: Acts like a waiter serving data without the need for the kitchen’s inner workings to be known.
• Domain Layer: Like a cook who applies business rules to the raw ingredients (data), processing them into usable forms.
• Routes/Controller Layer: The host directing calls and responses, ensuring smooth operations.
• Entry Point: Think of this as the main door to the restaurant where the magic begins.

Quick Start Instructions

To hit the ground running, follow these prerequisites:

1. Create an .env file in the project root with these environment variables:
   • DATABASE_URL – MongoDB connection URL
   • HTTP_PORT – port of server
   • JWT_SECRET – secret for generating JSON web tokens
   • REDIS_URL – Redis client
2. Use Docker to start the app locally by running:

   docker-compose up

3. Alternatively, run tests with:

   npm run test

Endpoints Overview

Navigate to http://localhost:5555/docs to see the available API endpoints.

Troubleshooting Tips

Here are some common troubleshooting ideas:

• If you’re having trouble connecting to the MongoDB, check that your DATABASE_URL is correctly set in the .env file.
• In case of JWT-related issues, ensure your JWT_SECRET is valid and correctly implemented.
• For any dependency or configuration issues, ensure to run npm install first to install the necessary packages.

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Conclusion

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.