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Blockchain Quick Start Guide

You're reading from Blockchain Quick Start Guide

Product type Book

Published in Dec 2018

Publisher Packt

ISBN-13 9781789807974

Pages 222 pages

Edition 1st Edition

Languages

Concepts

Authors (2):

Xun (Brian) Wu

Weimin Sun

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Table of Contents (14) Chapters

Title Page

Copyright and Credits

About Packt

Contributors

Preface

1. Introduction to Blockchain Technology

2. Ethereum Fundamentals

3. Overview of Solidity Programming

4. Building an Ethereum Blockchain Application

5. Exploring an Enterprise Blockchain Application Using Hyperledger Fabric

6. Implementing Business Networks Using Hyperledger Composer

7. Blockchain Use Cases

1. Other Books You May Enjoy

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Index

Decentralized application overview

A decentralized application (or DApp) is an application that uses smart contracts to run. Smart contracts are deployed on the Ethereum virtual machine (EVM). It is similar to a client-server low-tier architecture. A DApp can have a frontend (web) that makes calls to its backend (smart contract) through the web3.js API.

The following structure is what we are going to build for our crowdfunding DApp:

Strucuture of what we will be building for crowdfunding DApp

web3.js quick overview

web3.js is an Ethereum JavaScript API, that provides a collection of libraries to interact with a local or remote Ethereum network. The connection between web3js and Ethereum is made by using the HTTP or IPC protocol. In the following table, we quickly review a number of important web3.js API concepts:

API reference	Description	Example
web3-eth	This package provides an API to interact with the Ethereum blockchain and smart contracts	`getBalance`, `sendTransaction, coinbase`, `getBlockNumber...`

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Authors (2)

Xun (Brian) Wu

Xun (Brian) Wu is a senior blockchain architect and consultant. With over 20 years of hands-on experience across various technologies, including Blockchain, big data, cloud, AI, systems, and infrastructure, Brian has worked on more than 50 projects in his career. He has authored nine books, which have been published by O'Reilly, Packt, and Apress, focusing on popular fields within the Blockchain industry. The titles of his books include: Learn Ethereum (First Edition), Learn Ethereum (Second Edition), Blockchain for Teens, Hands-On Smart Contract Development with Hyperledger Fabric V2, Hyperledger Cookbook, Blockchain Quick Start Guide, Security Tokens and Stablecoins Quick Start Guide, Blockchain by Example, and Seven NoSQL Databases in a Week.

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Weimin Sun

Weimin Sun has 20 years' of experience working in the financial industry. He has worked for top-tier investment and commercial banks such as J.P. Morgan, Bank of America, Citibank, and Morgan Stanley, where he also managed large teams for developing IT applications. Weimin has also held corporate titles such as executive director and senior VP in some of these firms. Weimin has in-depth knowledge of the blockchain technology, data science, data architecture, data modeling, and big data platforms. He holds Ph.D, M.B.A and M.Sc degrees. He has co-authored Blockchain Quick Start Guide and published several statistical journal papers.

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