Microservices architecture offers a modern approach to software development by allowing independent development and deployment of application components, contrasting with the traditional monolithic structures where all components are tightly coupled. This article highlights the advantages of microservices, such as enhanced scalability, flexibility, and reliability, while also acknowledging the challenges like complex management and higher operational costs. It illustrates the implementation of microservices using Node.js and MongoDB change streams to enable real-time data synchronization, exemplified through a simple blog application with separate services for managing posts and comments. Node.js is favored for its event-driven, non-blocking architecture, making it suitable for efficient, real-time application development. The article provides a practical guide to setting up a microservices ecosystem using these technologies, showcasing the benefits of transitioning from monolithic applications to a more scalable and adaptable system.