Book Image

Hands-On Microservices with Spring Boot and Spring Cloud

By : Magnus Larsson
Book Image

Hands-On Microservices with Spring Boot and Spring Cloud

By: Magnus Larsson

Overview of this book

Microservices architecture allows developers to build and maintain applications with ease, and enterprises are rapidly adopting it to build software using Spring Boot as their default framework. With this book, you’ll learn how to efficiently build and deploy microservices using Spring Boot. This microservices book will take you through tried and tested approaches to building distributed systems and implementing microservices architecture in your organization. Starting with a set of simple cooperating microservices developed using Spring Boot, you’ll learn how you can add functionalities such as persistence, make your microservices reactive, and describe their APIs using Swagger/OpenAPI. As you advance, you’ll understand how to add different services from Spring Cloud to your microservice system. The book also demonstrates how to deploy your microservices using Kubernetes and manage them with Istio for improved security and traffic management. Finally, you’ll explore centralized log management using the EFK stack and monitor microservices using Prometheus and Grafana. By the end of this book, you’ll be able to build microservices that are scalable and robust using Spring Boot and Spring Cloud.
Table of Contents (26 chapters)
Title Page

Authenticating and authorizing API access using OAuth 2.0 and OpenID Connect

With the authorization server in place, we can enhance the edge server and the product-composite service so they become OAuth 2.0 resource servers; that is, they require a valid access token to allow access. We will configure the edge server to accept any access token it can validate using the signature provided by the authorization server. The product-composite service will also require the access token to contain some OAuth 2.0 scopes:

  • The product:read scope will be required for accessing the read-only APIs.
  • The product:write scope will be required for accessing the create and delete APIs.

We also need to enhance our test script, test-em-all.bash, so that it acquires access tokens before it runs the tests.

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