Hands-On Microservices – Monitoring and Testing

Microservices can make an application easier to divide into focused services, but that architectural choice brings its own practical questions: how should services communicate, how can they be tested without losing sight of the whole system, and how do teams spot performance trouble? Hands-On Microservices – Monitoring and Testing addresses those questions in a progression from architecture and implementation patterns to testing and performance monitoring.

From architecture choices to working services

Dinesh Rajput first compares monolithic, service-oriented, and microservice architectures, then examines service boundaries and decomposition around business capabilities and domains. The discussion proceeds through deployment options, synchronous and asynchronous communication, service discovery, and the role of an external API gateway. Together, these topics give readers a connected view of the decisions involved in shaping and operating a distributed application.

Testing at more than one level

The testing chapters distinguish approaches that answer different questions about a system. Topics include unit, integration, component, contract, end-to-end, and UI or functional testing. That range is useful for readers considering how to check individual services while also accounting for their interactions and the behavior of the wider application.

Performance testing and monitoring

Practical coverage turns to performance testing with JMeter and Gatling, including test planning and running test suites. The final chapter introduces performance counters and monitoring tools such as AppDynamics, Dynatrace, AWS CloudWatch, and Nagios. The emphasis is on recognizing and investigating performance concerns across microservices rather than treating testing and monitoring as isolated tasks.

For developers working with microservices

This book is intended for developers and software architects exploring microservice-based applications. Its examples use Spring Boot 2.0 and Spring Cloud, and the preface recommends a basic grounding in design patterns and Spring Boot. For readers building that foundation, the book brings architecture, service communication, testing, and operational visibility into one practical discussion.