March 2025
Intermediate to advanced
546 pages
14h 40m
English
Content preview from Fundamentals of Software Architecture, 2nd Edition
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Chapter 18. Microservices Architecture
Microservices is an extremely popular architecture style that has gained significant momentum in recent years. In this chapter, we provide an overview of the important characteristics that set this architecture apart, both topologically and philosophically.
Most architecture styles are named after they are created by architects who notice that a particular pattern keeps reappearing. There is no secret group of architects who decide what the next big movement will be—architects make decisions as the software development ecosystem shifts and changes, and of the most common ways of dealing with and profiting from those shifts, those that emerge as the best become architecture styles that others emulate.
Microservices differs in this regard—it was named fairly early in its usage. Martin Fowler and James Lewis popularized it in a famous 2014 blog post in which they recognized and delineated the characteristics of this relatively new architectural style. Their blog post shaped the definition of the architecture and helped curious architects understand the underlying philosophy.
Microservices is heavily inspired by the ideas in domain-driven design (DDD), a logical design process for software projects. One concept in particular from DDD, the bounded context, decidedly inspired microservices. The concept of a bounded context represents a decoupling style (as discussed previously in “Domain-Driven Design’s Bounded Context” in Chapter 7), which is ...
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