Book Image

Learn Blockchain Programming with JavaScript

By : Eric Traub
Book Image

Learn Blockchain Programming with JavaScript

By: Eric Traub

Overview of this book

Learn Blockchain Programming with JavaScript begins by giving you a clear understanding of what blockchain technology is. You’ll then set up an environment to build your very own blockchain and you’ll add various functionalities to it. By adding functionalities to your blockchain such as the ability to mine new blocks, create transactions, and secure your blockchain through a proof-of-work you’ll gain an in-depth understanding of how blockchain technology functions. As you make your way through the chapters, you’ll learn how to build an API server to interact with your blockchain and how to host your blockchain on a decentralized network. You’ll also build a consensus algorithm and use it to verify data and keep the entire blockchain network synchronized. In the concluding chapters, you’ll finish building your blockchain prototype and gain a thorough understanding of why blockchain technology is so secure and valuable. By the end of this book, you'll understand how decentralized blockchain networks function and why decentralization is such an important feature for securing a blockchain.
Table of Contents (10 chapters)

Block explorer file explanation

In this section, we're simply going to walk through the index.html file that we created in the previous section. We'll do this to gain a better understanding of what is going on. So, let's get started.

Inside the index.html file, we have all of the HTML and JavaScript code to give the necessary functionality to the block explorer. This code also allows us to hit the API, and lastly, we just have some CSS and styles, which make everything look nice in the browser.

The code begins by importing a couple of libraries, such as angular.js, to hit the API, along with jQuery, Bootstrap, and some Bootstrap styles to make everything functional and aesthetically pleasing:

<title>Block Explorer</title>
<script src=""></script>