Martin Fowler's Microservices Guide
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James Lewis and Martin Fowler's 2014 essay defining the microservice architectural style: componentization via services, decentralized data, smart endpoints, infrastructure automation. Readers come away able to name the nine characteristics and weigh the trade-offs against a monolith.
More resources on Microservices
microservices.io
Microservices.io is a detailed resource on microservices architecture, offering patterns, principles, and practical guidance for building and operating microservice-based systems. It covers decomposition strategies, inter-service communication, data management, testing, deployment, and governance patterns to apply proven approaches.
Building Microservices
Sam Newman covers how to decompose a system into services and then run them: modeling boundaries, integration styles, versioning, deployment, testing, monitoring, security. Readers finish able to reason about where service boundaries belong and what operational cost they carry.
Microservices Patterns
Chris Richardson catalogues 44 patterns for service decomposition, inter-service communication, sagas for distributed transactions, CQRS querying, and testing. Worked Java examples let readers pick a pattern for a given consistency or coupling problem rather than guessing.
Monolith to Microservices
Sam Newman treats decomposition as an incremental migration: strangler fig, branch by abstraction, parallel run, and the harder job of splitting a shared database. Readers finish able to sequence a migration and to judge when not to start one.