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Gearing up for the Journey

After learning the theory about microservices, we will now move on to hands-on implementation. This chapter will lay the foundation for the journey ahead and will revisit Node.js and TypeScript concepts essential to the book. It will tell you about the trends and adoption rates of both languages. We will go through all the required installations, and we will prepare our development environment. We will test the development environment by implementing the customary Hello World microservice. In this chapter, we will focus on the following topics:

Setting up the primary development environment: We will set up a primary environment with all the prerequisites needed. We will understand all aspects required for microservice development.
Primer to TypeScript: In this section, we are going to walk through some of the major TypeScript topics that we...

Key benefits

• Learn to build message-driven services for effective communication

• Design microservices API using Reactive programming design patterns

• Deploy, scale and monitor microservices for consistent high performance

Description

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.

What you will learn

• Get acquainted with the fundamentals behind microservices.

• Explore the behavioral changes needed for moving from monolithic to microservices.

• Dive into reactive programming, Typescript and Node.js to learn its

fundamentals in microservices

• Understand and design a service gateway and service registry for your

microservices.

• Maintain the state of microservice and handle dependencies.

• Perfect your microservice with unit testing and Integration testing

• Develop a microservice, secure it, deploy it, and then scale it

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Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

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Luca Campana May 05, 2019

A useful guide among the thousand frameworks and tools available today for node and typescript, excellent guidelines for a microservices architecture

Amazon Verified review

Job Edson Ortiz Zárate Feb 22, 2022

Se requiere conocimientos previos en docker, Microservices, NODEJS, buena guía para poner todos los conceptos paso a paso en un nuevo proyecto de microservicios con NODEJS

Dave Nov 19, 2018

This is a great book technically but suffers from typos e.g. calling javascript Java at one point which was confusing. Another issue is editing for example one section tells us we are about to code then gives us a summary and ends the chapter. Here's another example, from page 223 "...it simply sends the message to any queue or message broker and simply."I've put the full stop in the speach marks because that's how it is in the book.I'd recommend this book, but it's a hard read when every few pages there is a mistake that makes it hard to understand.

Amazon Customer Aug 24, 2020

The first chapter is very informative for those unfamiliar with design patterns, or specifically, these patterns. The examples and instructions for building the sample projects are not clear. It is difficult to follow along with the examples. The author obviously put a lot of work into this book, but the editor took the day off.

Oracle Apr 22, 2020

Pros: Ok compilation of information, for reference.Cons: Bad grammar, reads as though it was not edited or reviewed. Minimal code examples.In summary, if you are looking for information about creating an application written in TypeScript and using microservices, this is not the book for you. You would be better off buying a book about microservices that is language agnostic, then applying what you already know about TypeScript and the microservice features of your chosen framework.--This book provides an ok compilation of information about the structure of a microservice oriented architecture, whilst a lot of information could be found online I find it useful to have all the information in one place that I can easily reference.However, it reads like a first draft that was published without being reviewed by an editor. There are lots of grammatical mistakes, making more than a few concepts difficult to understand unless you reread that section (sometimes not even then) or look them up online.Not to mention, there are frequently random digressions and sections that should have been removed as they don't add to the value of the information. One pertinent example of this is in chapter 4 under "Design aspects involved": "Let's say if I have to cut down a tree (PS: I am a nature lover and I don't support this), instead of directly chopping it down, I would rather first sharpen the axe."Whilst it is admirable that the author doesn't support chopping down a tree, it is completely irrelevant in the context of a book that is supposed to be focusing on providing information succinctly.It is this kind of thing that strongly suggests there was no editor involved.I appreciate that English may not be the authors first language, indeed they do seem to have a good grasp on it, I am not going to dwell on this as I have read things written by native English speakers that are much worse.I think the title is somewhat misleading, although TypeScript/JavaScript and Nodejs are used in the book, it is much more theory focused than code focused. Personally, I think the title should be more along the lines of "Microservices with examples in TypeScript" which even then puts a bit too much emphasis on TypeScript.Really, you could take the information provided and apply it to any language you choose, you would just need to implement the sections on packages/NPM etc, differently according to that language.All that being said, would I have bought the book or recommend it knowing all that? I wouldn't. There are better books that are the around the same price.As it stands, I did buy it, and as I said it provides an ok reference for structuring a microservice application, I have found one or two things useful and it has answered some questions I have had. Which is why I have given it two stars.If it was edited better and contained more examples and more complete examples, instead of scattered snippets, it would be a very good book for architecting microservices with TypeScript.

CORS (https://www.npmjs.com/package/cors)	Adds CORS headers, so that cross applications can access it.
Routing Controllers (https://www.npmjs.com/package/routing-controllers)	Beautiful decorators provided in this module, which help us to write our API's and routes easily.
Winston (https://www.npmjs.com/package/winston)	Perfect logging module with many advanced features.

TypeScript Microservices: Build, deploy, and secure Microservices using TypeScript combined with Node.js

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TypeScript Microservices

Gearing up for the Journey

Setting up primary environment

Visual Studio Code (VS Code)

Primer to TypeScript

Primer to Node.js

Writing your first Hello World microservice

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