What are the advantages and disadvantages of using microservices architecture compared to a monolithic approach?

In my final year project at university, my team and I developed a web application using a microservices architecture. Each member was responsible for a different service, such as user authentication and data processing. This approach allowed us to work independently and deploy our parts of the application separately, which improved our workflow and minimized conflicts. However, we faced challenges in integrating the services, as we had to ensure they communicated effectively. Overall, while the microservices architecture enhanced our collaboration, it also required us to spend extra time on managing service interactions.

During a volunteer stint with a local non-profit, I helped develop a simple event management system. We opted for a monolithic architecture due to the limited scale of our project. This decision allowed us to focus on building features quickly without worrying about service communication complexities. However, as the system grew, we realized it became challenging to manage changes, especially when multiple team members needed to work on the same codebase. While the monolithic approach was efficient for our initial needs, it highlighted the trade-offs in scalability and flexibility.

In my first role as a junior developer, I worked on an e-commerce platform that utilized a hybrid approach. Some services were built as microservices, while others remained monolithic. This experience taught me the importance of context; for high-traffic features, microservices provided the scalability we needed, but for simpler functionalities, the monolithic approach proved easier to manage. I learned that weighing the advantages, such as flexibility and independent deployment, against disadvantages like increased complexity and operational overhead is crucial when deciding on an architecture.