This tutorial focuses on building a server-side image upload system using Node.js.The system involves handling image uploads, storing them, managing metadata, and serving them back to the application.Steps include configuring routes, controllers, and using Multer for multipart/form-data handling.Setting up file storage, integrating with a database, and creating endpoints to manage image data are key components.Code snippets demonstrate creating routes for image upload and deletion functionality.Functionality for uploading, removing images, and sending images from the frontend are explained.Handling main images, additional images, and updating post data are detailed.Considerations such as image optimization, AWS S3 integration, and security measures are mentioned for future enhancements.The tutorial emphasizes error handling, security, file size limits, and encourages contributions and feedback.The provided code repository contains the complete tutorial implementation for reference.