Book Image

Designing Microservices Platforms with NATS

By : Chanaka Fernando
5 (1)
Book Image

Designing Microservices Platforms with NATS

5 (1)
By: Chanaka Fernando

Overview of this book

Building a scalable microservices platform that caters to business demands is critical to the success of that platform. In a microservices architecture, inter-service communication becomes a bottleneck when the platform scales. This book provides a reference architecture along with a practical example of how to implement it for building microservices-based platforms with NATS as the messaging backbone for inter-service communication. In Designing Microservices Platforms with NATS, you’ll learn how to build a scalable and manageable microservices platform with NATS. The book starts by introducing concepts relating to microservices architecture, inter-service communication, messaging backbones, and the basics of NATS messaging. You’ll be introduced to a reference architecture that uses these concepts to build a scalable microservices platform and guided through its implementation. Later, the book touches on important aspects of platform securing and monitoring with the help of the reference implementation. Finally, the book concludes with a chapter on best practices to follow when integrating with existing platforms and the future direction of microservices architecture and NATS messaging as a whole. By the end of this microservices book, you’ll have developed the skills to design and implement microservices platforms with NATS.
Table of Contents (15 chapters)
1
Section 1: The Basics of Microservices Architecture and NATS
5
Section 2: Building Microservices with NATS
11
Section 3: Best Practices and Future Developments

Implementing microservices

We have already defined the interfaces of the microservices in the previous section. Let's understand the data structures that we are going to use in their implementation. The following diagram depicts the data structures and their associations with each microservice:

Figure 6.7 – Data structures and their associations with microservices

As depicted in the preceding diagram, each microservice is associated with its own data structures, as well as some common data structures that are used to share data via messages.

The patient service uses the patient registration process, so it uses the RegistrationRequest data type. The RegistrationEvent data type is used to communicate a patient registration to the inspection service.

The inspection service receives the registration event and uses that to process the inspection tasks. It uses the InspectionRequest data type to keep the inspection details. Once the inspection...