In many cases, the microservices perform more tasks than they should. Apparently all is well and deployment is simplified, but in fact, the domain is fat. Microservices do not have that name because they are a small application, but because they have a small and simple business domain. When a microservice has limitations in certain fields, it means that the application was initially constructed on a small monolith.
Thinking about our application, the news portal, a good candidate for a microservice is users. It makes perfect sense to build a microservice administering user data. However, usually, in a monolithic application, the layer on the users has a strong connection with AAA (Authentication, Authorization, ...
