Book Image

Blockchain for Enterprise

By : Narayan Prusty
Book Image

Blockchain for Enterprise

By: Narayan Prusty

Overview of this book

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.
Table of Contents (14 chapters)
Title Page
Packt Upsell

Overview of Quorum

Quorum is a permissioned decentralized platform that allows us to deploy DApps on top of it. DApps are created using one or more smart contracts. Smart contracts are programs that run exactly as programmed without any possibility of downtime, censorship, fraud, or third-party interface. In Quorum, smart contracts can be written in Solidity, LLL, or Serpent. Solidity is the preferred one. There can be multiple instances of a smart contract. Each instance is identified by a unique address, and you can deploy multiple DApps on the same Quorum network. 

In Ethereum, there is an internal currency called ether. To deploy or execute smart contracts, you need to pay ether to the miners and as Quorum is a fork of Ethereum, the same thing exists here too. But in Quorum, ether is valueless and a fixed number of ether is generated at the genesis block, and no more ether can be generated after that. Both user accounts and smart contracts can hold ether. In Quorum, you need to have some...