You're reading from Building Microservices with Micronaut® A quick-start guide to building high-performance reactive microservices for Java developers

Product type Paperback

Published in Sep 2021

Publisher Packt

ISBN-13 9781800564237

Length 362 pages

Edition 1st Edition

Languages

Java

Tools

Gradle

Concepts

Microservices

Authors (2):

Zack Dawood

Nirmal Singh

View More author details

Table of Contents (20) Chapters

Preface

1. Section 1: Core Concepts and Basics

2. Chapter 1: Getting Started with Microservices Using the Micronaut Framework FREE CHAPTER

3. Section 2: Microservices Development

4. Chapter 2: Working on Data Access

5. Chapter 3: Working on RESTful Web Services

6. Chapter 4: Securing the Microservices

7. Chapter 5: Integrating Microservices Using Event-Driven Architecture

8. Section 3: Microservices Testing

9. Chapter 6: Testing Microservices

10. Section 4: Microservices Deployment

11. Chapter 7: Handling Microservice Concerns

12. Chapter 8: Deploying Microservices

13. Section 5: Microservices Maintenance

14. Chapter 9: Distributed Logging, Tracing, and Monitoring

15. Section 6: IoT with Micronaut and Closure

16. Chapter 10: IoT with Micronaut

17. Chapter 11: Building Enterprise-Grade Microservices

18. Assessment

19. Other Books You May Enjoy

Using DTOs for the endpoint payloads

The DTO pattern originates from the enterprise application architecture and fundamentally, data objects aggregate and encapsulate the data to transfer. Since in the microservices architecture an end client may need varied data from different persistence resources (such as invoice data along with user data), the DTO pattern is very effective in limiting calls to microservices for getting the desired projection of data. DTOs are also known as assembler objects since they assemble data from multiple entity classes.

In this section, we will explore how to implement and map (to an entity) DTOs. In the later sections, we will further dive into using DTOs as an effective mechanism to transfer data from and into a microservice. We will also look at how DTOs can help reduce the number of calls to microservices by assembling data.