Book Image

Embracing Microservices Design

By : Ovais Mehboob Ahmed Khan, Nabil Siddiqui, Timothy Oleson
Book Image

Embracing Microservices Design

By: Ovais Mehboob Ahmed Khan, Nabil Siddiqui, Timothy Oleson

Overview of this book

Microservices have been widely adopted for designing distributed enterprise apps that are flexible, robust, and fine-grained into services that are independent of each other. There has been a paradigm shift where organizations are now either building new apps on microservices or transforming existing monolithic apps into microservices-based architecture. This book explores the importance of anti-patterns and the need to address flaws in them with alternative practices and patterns. You'll identify common mistakes caused by a lack of understanding when implementing microservices and cover topics such as organizational readiness to adopt microservices, domain-driven design, and resiliency and scalability of microservices. The book further demonstrates the anti-patterns involved in re-platforming brownfield apps and designing distributed data architecture. You’ll also focus on how to avoid communication and deployment pitfalls and understand cross-cutting concerns such as logging, monitoring, and security. Finally, you’ll explore testing pitfalls and establish a framework to address isolation, autonomy, and standardization. By the end of this book, you'll have understood critical mistakes to avoid while building microservices and the right practices to adopt early in the product life cycle to ensure the success of a microservices initiative.
Table of Contents (16 chapters)
1
Section 1: Overview of Microservices, Design, and Architecture Pitfalls
6
Section 2: Overview of Data Design Pitfalls, Communication, and Cross-Cutting Concerns
10
Section 3: Testing Pitfalls and Evaluating Microservices Architecture

The fundamentals of microservices communication

Before we start our discussion of the different communication challenges, first, we will explore the fundamentals of communication in a microservices architecture. In the next few subsections, we will briefly discuss the core concepts of communication, as they form the basis of a microservices architecture.

Synchronous versus asynchronous communication

To enable communication between clients and services, we will explore the fundamental differences between various alternatives to help us choose the right communication type for our microservices. In synchronous communication, the client sends a request and waits for a response from the service. Synchronous communication can either be blocking or non-blocking, but the client can only continue further processing once a response has been received from the service. This pattern is also known as the synchronous request/response pattern. In service-to-service communication, request/response...