▶Book Description
The increasing growth in blockchain use is enormous, and it is changing the way business is done. Many leading organizations are already exploring the potential of blockchain. With this book, you will learn to build end-to-end enterprise-level decentralized applications and scale them across your organization to meet your company's needs.
This book will help you understand what DApps are and how the blockchain ecosystem works, via real-world examples. This extensive end-to-end book covers every blockchain aspect for business and for developers. You will master process flows and incorporate them into your own enterprise. You will learn how to use J.P. Morgan's Quorum to build blockchain-based applications. You will also learn how to write applications that can help communicate enterprise blockchain solutions. You will learn how to write smart contracts that run without censorship and third-party interference.
Once you've grasped what a blockchain is and have learned about Quorum, you will jump into building real-world practical blockchain applications for sectors such as payment and money transfer, healthcare, cloud computing, supply chain management, and much more.
▶What You Will Learn
⦁ Learn how to set up Raft/IBFT Quorum networks
⦁ Implement Quorum's privacy and security features
⦁ Write, compile, and deploy smart contracts
⦁ Learn to interact with Quorum using the web3.js JavaScript library
⦁ Learn how to execute atomic swaps between different networks
⦁ Build a secured Blockchain-as-a-Service for efficient business processes
⦁ Achieve data privacy in blockchains using proxy re-encryption
▶Key Features
⦁ Build permissioned enterprise-grade blockchain applications from scratch
⦁ Implement Blockchain-as-a-Service to enterprises in terms of deployment and security
⦁ Achieve privacy in blockchains using proxy re-encryption algorithms
▶Who This Book Is For
This book is for innovators, digital transformers, and blockchain developers who want to build end-to-end DApps using blockchain technology. If you want to scale your existing blockchain system across the enterprise, you will find this book useful too. It gives you the practical approach needed for solving real problems in an enterprise using a blend of theory- and practice-based approaches.
▶What this book covers
⦁ Chapter 1, What are Decentralized Applications?, will explain what DApps are and provide an overview of blockchain-based DApps.
⦁ Chapter 2, Building Blockchain Using Quorum, introduces the basics of Ethereum blockchain and the features of Quorum. This chapter also teaches you how to set up a Raft network using Quorum and various third-party tools and libraries.
⦁ Chapter 3, Writing Smart Contracts, shows how to write smart contracts and use geth's interactive console to deploy and broadcast transactions using web3.js.
⦁ Chapter 4, Getting Started with web3.js, introduces web3.js and how to import and connect to geth, and explains how to use it in Node.js or client-side JavaScript.
⦁ Chapter 5, Building Interoperable Blockchains, explores what interoperable blockchains can achieve, the various technologies and patterns for achieving blockchain interoperability, and building interoperable blockchain networks to represent FedCoins.
⦁ Chapter 6, Building Quorum as a Service Platform, will teach you the basics of cloud computing and containerization by examples. You'll learn how to install minikube, deploy containers on Kubernetes, and develop a Quorum-as-a-service using QNM.
⦁ Chapter 7, Building a DApps for Digitizing Medical Records, gets into how to use proxy reencryption to enable encrypted data sharing in blockchain. Besides proxy re-encryption, you'll also learn about a lot of JavaScript and Python libraries, such as etherumjs-wallet, ethereumjs-tx, ethereumjs-util, and npre. Also, you'll learn about signing transactions using keys stored outside a geth node.
⦁ Chapter 8, Building a Payment Solution for Banks, looks at how to implement network permissioning in Quorum and how to build a solution to transfer money using a mobile number.
