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Building Enterprise JavaScript Applications

Building Enterprise JavaScript Applications

By : Daniel Li
4.6 (5)
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Building Enterprise JavaScript Applications

Building Enterprise JavaScript Applications

4.6 (5)
By: Daniel Li

Overview of this book

With the over-abundance of tools in the JavaScript ecosystem, it's easy to feel lost. Build tools, package managers, loaders, bundlers, linters, compilers, transpilers, typecheckers - how do you make sense of it all? In this book, we will build a simple API and React application from scratch. We begin by setting up our development environment using Git, yarn, Babel, and ESLint. Then, we will use Express, Elasticsearch and JSON Web Tokens (JWTs) to build a stateless API service. For the front-end, we will use React, Redux, and Webpack. A central theme in the book is maintaining code quality. As such, we will enforce a Test-Driven Development (TDD) process using Selenium, Cucumber, Mocha, Sinon, and Istanbul. As we progress through the book, the focus will shift towards automation and infrastructure. You will learn to work with Continuous Integration (CI) servers like Jenkins, deploying services inside Docker containers, and run them on Kubernetes. By following this book, you would gain the skills needed to build robust, production-ready applications.
Table of Contents (20 chapters)
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1
The Importance of Good Code

Obtaining an IP address


The internet is a giant network of interconnected machines. For these machines to communicate with one another, each machine must have a unique identifier. The internet uses the TCP/IP protocol for its communication, which in turn uses the IP address as its unique identifier. So, the first requirement for exposing our API to the internet is to have an IP address.

 

If you are paying for internet at home, you too will have an IP address provided to you by your Internet Service Provider (ISP). You can check your IP address by using an external service such as ipinfo.io:

$ curl ipinfo.io/ip
146.179.207.221

This means it's theoretically possible to host your API using your home PC, or even your laptop. However, doing so is problematic because of the following reasons:

  • Most consumer-grade internet plans provide dynamic IP addresses, rather than static ones, which means your IP can change every few days
  • Many ISPs block incoming traffic to port 80, which is the default HTTP port...

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