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Mastering Spring Boot 2.0

By : Rajput

3.2 (14)

Buy this Book

Mastering Spring Boot 2.0

3.2 (14)

By: Rajput

Buy this Book

Overview of this book

Spring is one of the best frameworks on the market for developing web, enterprise, and cloud ready software. Spring Boot simplifies the building of complex software dramatically by reducing the amount of boilerplate code, and by providing production-ready features and a simple deployment model. This book will address the challenges related to power that come with Spring Boot's great configurability and flexibility. You will understand how Spring Boot configuration works under the hood, how to overwrite default configurations, and how to use advanced techniques to prepare Spring Boot applications to work in production. This book will also introduce readers to a relatively new topic in the Spring ecosystem – cloud native patterns, reactive programming, and applications. Get up to speed with microservices with Spring Boot and Spring Cloud. Each chapter aims to solve a specific problem or teach you a useful skillset. By the end of this book, you will be proficient in building and deploying your Spring Boot application.

Preface

Who this book is for

What this book covers

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Free Chapter

Getting Started with Spring Boot 2.0

Introducing Spring Boot

Simplifying Spring application development using Spring Boot

The essential key components of Spring Boot

Setting up a Spring Boot workspace

Developing your first Spring Boot application

Implementing the REST service

New features in Spring Boot 2.0

Summary

Customizing Auto-Configuration in Spring Boot Application

Understanding auto-configuration

Customizing Spring Boot

Externalizing configuration with properties

Externally configuring application properties

Fine-tuning with logging

Using YAML for configuration

Customizing application error pages

Summary

Getting Started with Spring CLI and Actuator

Getting started with using Spring Boot CLI

Using the Initializr with the Spring Boot CLI

Spring Boot Actuator – taking Application's Insights

Securing the Actuator endpoints

The Actuator with Spring Boot 2.X

Summary

Getting Started with Spring Cloud and Configuration

Cloud-native application architecture

Introduction to Spring Cloud

Configuring the Spring Cloud application

Creating the configuration producer Spring Cloud Config Server

Implementing Cloud Config Server

Configuring multiple repositories using patterns

Creating the configuration consumer Spring Cloud Config client

Summary

Spring Cloud Netflix and Service Discovery

Introduction to Spring Cloud Netflix

The need for Service Discovery in the microservices architecture

Implementing Service Discovery – Eureka Server

Implementing Service Discovery – Eureka clients

Registering a client with Eureka

Summary

Building Spring Boot RESTful Microservice

Microservices with Spring Boot

Brief introduction to Spring Data

Summary

Creating API Gateway with Netflix Zuul Proxy

The need for an API Gateway pattern

Implementing API Gateway using Netflix Zuul Proxy

Summary

Simplify HTTP API with Feign Client

Declarative REST client – Feign basics

Including Feign in the cloud application

Advanced usage of the Feign client

Exception handling

Custom encoders and decoders

Feign and Hystrix

Unit testing Feign clients

Summary

Building Event-Driven and Asynchronous Reactive Systems

Event-driven architecture patterns

Introduction to reactive programming

Introduction to Command Query Responsibility Segregation

Building an event-driven Reactive Asynchronous System

Introducing Spring Cloud Streaming

Summary

Building Resilient Systems Using Hystrix and Turbine

Circuit-breaker pattern

Using the Hystrix library with a reference implementation

Configuring Hystrix in your application

Implementing a REST controller in customer service

Building and testing customer service

Customizing the default configuration

Hystrix Metrics Stream

Implementing Hystrix Dashboard in our project

Turbine dashboard

REST consumer with Hystrix and Feign

Summary

Testing Spring Boot Application

Test-driven development

Unit testing

Integration testing

JUnit tests for the Spring Boot application

Using Mockito for mocking services

Postman for testing RESTful service contracts

Summary

Containerizing Microservice

Introducing containers to the microservice architecture

Getting started with Docker

Dockerizing any Spring Boot application

Creating a Docker image using Maven

Getting started with Docker Compose

Introducing Kubernetes

Summary

API Management

Rate limiting

Learning about KONG

Swagger

Summary

Deploying in Cloud (AWS)

Spinning up an AWS EC2 instance

Microservices architecture on AWS

Installing Docker on AWS EC2

Running microservices on AWS EC2

Summary

Production Ready Service Monitoring and Best Practices

Monitoring containers

Logging challenges for the microservices architecture

Centralized logging solution for the microservices architecture

Summary

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Getting Started with Spring CLI and Actuator

In the previous chapters, we have seen several ways to create a Spring Boot application using the Spring Boot web-based interface, STS IDE, and Spring Boot CLI. In this chapter, we will discuss Spring Boot CLI a bit deeper and will also see how to install CLI in your machine and how to create a Spring Boot application using the CLI interface.

By the end of this chapter, you will understand how to install and use Spring Boot CLI to develop Spring applications with more simplicity and understand how you can run this application using the CLI. Also, you will get understanding of Spring Boot's production-ready feature, the Actuator. The Spring Boot Actuator provides many endpoints to look at what's going on with your application in production.

This chapter will cover the following points: