Wrapping It All Up
At this point, we have discovered several patterns and nuances surrounding microservices design. Now, let us explore our patterns at a high level and tie all the concepts together. It is essential to scope which pattern fits best into each situation.
The microservices architectural approach to software development promotes loose coupling of autonomous processes and creating standalone software components that handle these processes. An excellent approach to scoping these processes is to employ the domain-driven design (DDD) pattern. In DDD, we categorize the system’s functionality into sub-sections called domains and then use these domains to govern what services or standalone apps are needed to support each domain. We then use the aggregator pattern to attempt to scope the domain objects needed per service.