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

Chapter 3. Writing Smart Contracts

In the previous chapter, we learned how Quorum works and how the various consensus protocols safeguard it. Let's move on to writing smart contracts, now that we understand how Quorum works. Quorum smart contracts can be written using many languages; the most popular one is Solidity. In this chapter, we will learn Solidity, and build a DApp that enterprises can use to sign documents digitally.

In this chapter, we'll cover the following topics:

  • The layout of Solidity source files
  • Understanding Solidity data types
  • Special variables and contract functions
  • Control structures
  • Structure and features of contracts
  • Compiling and deploying contracts


This chapter is same as chapter present in author's previous book Blockchain for Projects. This is not a second edition book,it is used to explain fundamental concepts to the readers.