Book Image

Blockchain By Example

By : Bellaj Badr, Richard Horrocks, Xun (Brian) Wu
Book Image

Blockchain By Example

By: Bellaj Badr, Richard Horrocks, Xun (Brian) Wu

Overview of this book

The Blockchain is a revolution promising a new world without middlemen. Technically, it is an immutable and tamper-proof distributed ledger of all transactions across a peer-to-peer network. With this book, you will get to grips with the blockchain ecosystem to build real-world projects. This book will walk you through the process of building multiple blockchain projects with different complexity levels and hurdles. Each project will teach you just enough about the field's leading technologies, Bitcoin, Ethereum, Quorum, and Hyperledger in order to be productive from the outset. As you make your way through the chapters, you will cover the major challenges that are associated with blockchain ecosystems such as scalability, integration, and distributed file management. In the concluding chapters, you’ll learn to build blockchain projects for business, run your ICO, and even create your own cryptocurrency. Blockchain by Example also covers a range of projects such as Bitcoin payment systems, supply chains on Hyperledger, and developing a Tontine Bank Every is using Ethereum. By the end of this book, you will not only be able to tackle common issues in the blockchain ecosystem, but also design and build reliable and scalable distributed systems.
Table of Contents (13 chapters)

Creating a composer Fabric application

As we introduced briefly in the previous chapter, Hyperledger Composer is built on top of the Hyperledger Fabric blockchain. It provides a set of tools to help developers rapidly develop use cases and deploy a blockchain solution quickly. Hyperledger Composer is built with JavaScript, leveraging modern tools including Node.js and NPM. It involves a business-centric, driven development process and helps developers to digitize and model business networks.

Hyperledger Composer is a toolbox of helpful tools that includes the following:

  • A modeling language called CTO
  • Composer Playground, which is a web interface for the rapid building and testing of a business network
  • Command-line interface (CLI) tools for integrating modeled business networks (created using Hyperledger Composer) in a running instance of the Hyperledger Fabric network

We introduced...