Learn to build a comprehensive Node.js REST API for a blog application using MongoDB and Express framework. Explore essential features including user authentication, CRUD operations for posts and categories, file uploads, and database queries. Follow step-by-step instructions to set up the development environment, create an Express server, establish MongoDB connections, design data models, implement user registration and login, and develop endpoints for managing blog content. Gain hands-on experience in building a robust backend system for a full-stack blog application, preparing you for the next steps in frontend development and MERN stack integration.