Book Image

TypeScript Microservices

Book Image

TypeScript Microservices

Overview of this book

In the last few years or so, microservices have achieved the rock star status and right now are one of the most tangible solutions in enterprises to make quick, effective, and scalable applications. The apparent rise of Typescript and long evolution from ES5 to ES6 has seen lots of big companies move to ES6 stack. If you want to learn how to leverage the power of microservices to build robust architecture using reactive programming and Typescript in Node.js, then this book is for you. Typescript Microservices is an end-to-end guide that shows you the implementation of microservices from scratch; right from starting the project to hardening and securing your services. We will begin with a brief introduction to microservices before learning to break your monolith applications into microservices. From here, you will learn reactive programming patterns and how to build APIs for microservices. The next set of topics will take you through the microservice architecture with TypeScript and communication between services. Further, you will learn to test and deploy your TypeScript microservices using the latest tools and implement continuous integration. Finally, you will learn to secure and harden your microservice. By the end of the book, you will be able to build production-ready, scalable, and maintainable microservices using Node.js and Typescript.
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Core concepts – state, communication, and dependencies 


Each microservice implements a single capability such as shipping, and deducting from the inventory. However, to deliver an end user, a service request such as business capability, user need, or user-specific requests; it may or may not be a set of business capabilities. For example, a person who wants to buy the product is a single service request from the user's point of view. However, multiple requests are involved here, such as add to cart microservice, payment microservice, shipping microservice.  Hence, to deliver, microservices need to collaborate among each other. In this section, we will look at core concepts of microservice collaboration such as service state, communication styles, and more. Choosing the correct communication style helps us to design a loosely coupled architecture that ensures that each microservice has clear boundaries and it stays inside its bounded context. In this section, we will look at some core concepts...