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)

Summary

In this chapter, we have scratched the surface of working with the Ethereum blockchain using your beloved language, Java. Indeed, it was a gentle introduction to web3j by building an Oracle-based application, opening the door to build complex Ethereum applications in Java. From now on, all you need is to dive deep into the web3j documentation. You will find a number of smart contract examples in their main project repository (https://github.com/web3j/web3j/tree/master/codegen/src/test/resources/solidity).

To enrich your knowledge, you can also explore EthereumJ, which is a Java implementation of the Ethereum protocol, or Ethereum Harmony. To step outside of the Java world, you can explore Web3py (https://github.com/ethereum/web3.py), which is a complete Python implementation of web3js.

In the next chapter, our Ethereum journey will continue as we examine how to use Ethereum...