Book Image

Building Microservices with Micronaut®

By : Nirmal Singh, Zack Dawood
Book Image

Building Microservices with Micronaut®

By: Nirmal Singh, Zack Dawood

Overview of this book

The open source Micronaut® framework is a JVM-based toolkit designed to create microservices quickly and easily. This book will help full-stack and Java developers build modular, high-performing, and reactive microservice-based apps using the Micronaut framework. You'll start by building microservices and learning about the core components, such as ahead-of-time compilation, reflection-less dependency injection, and reactive baked-in HTTP clients and servers. Next, you will work on a real-time microservice application and learn how to integrate Micronaut projects with different kinds of relational and non-relational databases. You'll also learn how to employ different security mechanisms to safeguard your microservices and integrate microservices using event-driven architecture in the Apache Kafka ecosystem. As you advance, you'll get to grips with automated testing and popular testing tools. The book will help you understand how you can easily handle microservice concerns in Micronaut projects, such as service discovery, API documentation, distributed configuration management, fallbacks, and circuit breakers. Finally, you'll explore the deployment and maintenance aspects of microservices and get up to speed with the Internet of Things (IoT) using the Framework. By the end of this book, you'll be able to build, test, deploy, and maintain your own microservice apps using the framework.
Table of Contents (20 chapters)
Section 1: Core Concepts and Basics
Section 2: Microservices Development
Section 3: Microservices Testing
Section 4: Microservices Deployment
Section 5: Microservices Maintenance
Section 6: IoT with Micronaut and Closure

Chapter 9: Distributed Logging, Tracing, and Monitoring

A microservice application often runs multiple microservices on a varied range of multiple hosts. For upstream consumers, the API gateway provides a one-stop-shop interface to access all the application endpoints. Any request to the API gateway is dispersed to one or more microservices. This distributed diffusion of request handling escalates challenges in maintaining microservices-based applications. If any anomaly or error occurs, it is hard to dig which microservice or distributed component is at fault. In addition, any effective microservices implementation must handle the maintenance challenges proactively.

In this chapter, we will explore the following topics:

  • Distributed logging: How we can implement the log aggregation for distributed microservices so that application logs can be accessed and indexed in one place?
  • Distributed tracing: How we can trace the execution of a user request that could be dispersed...