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

Questions you should be asking while applying security


In a constantly evolving world, we can't have a predefined set of rules to apply in microservice design. Rather, we can have some predefined questions that we can ask ourselves to evaluate the overall system and processes. The following sections list of all the standard questions at various levels, which we can use as an evaluation checklist. Later, we will be upgrading our security as a solution to these questions.

Core application/core microservice

We will begin at the very core—our microservice. Whenever we write any microservice to satisfy any business capability, once it is designed, we need to take care of whether the service is exposed to any vulnerabilities or not. The following questions can be asked to get a general idea about security at the application level:

  • Is the system properly secured at all places or just at the boundaries?
  • If an intruder sneaks in, is the system powerful enough to detect that intruder and throw him out...