Book Image

Hands-On Blockchain with Hyperledger

By : Nitin Gaur, Luc Desrosiers, Venkatraman Ramakrishna, Petr Novotny, Salman A. Baset, Anthony O'Dowd
Book Image

Hands-On Blockchain with Hyperledger

By: Nitin Gaur, Luc Desrosiers, Venkatraman Ramakrishna, Petr Novotny, Salman A. Baset, Anthony O'Dowd

Overview of this book

Blockchain and Hyperledger technologies are hot topics today. Hyperledger Fabric and Hyperledger Composer are open source projects that help organizations create private, permissioned blockchain networks. These find application in finance, banking, supply chain, and IoT among several other sectors. This book will be an easy reference to explore and build blockchain networks using Hyperledger technologies. The book starts by outlining the evolution of blockchain, including an overview of relevant blockchain technologies. You will learn how to configure Hyperledger Fabric and become familiar with its architectural components. Using these components, you will learn to build private blockchain networks, along with the applications that connect to them. Starting from principles first, you’ll learn to design and launch a network, implement smart contracts in chaincode and much more. By the end of this book, you will be able to build and deploy your own decentralized applications, handling the key pain points encountered in the blockchain life cycle.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Packt Upsell
Foreword
Contributors
Preface
Index

Configuring your Git repository


In this section, we will see how to properly protect our Git repository by doing the following:

  • Setting the code owners of our smart contract
  • Protecting the master branch
  • Configuring Git for commit signing and validation
  • Testing the process by submitting a pull request

Setting the code owners of our smart contract

We will start by defining the code owners for our smart contract.

Ideally, in a large consortium, the code owners should not be the same group as the one that modifies the code. Remember, these steps are meant to reinforce the trust in the network.

Code owners are defined in a file called CODEOWNERS, which can reside either in the root directory or the .Github directory. GitHub allows us to define different code owners depending on file patterns, so while we could get very creative, we will focus on a few artifacts from our Hyperledger composer project:

  • package.json: As it controls the build and packaging process, this represents a key file to control.
  • header...