Book Image

Blockchain Developer's Guide

By : Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty
Book Image

Blockchain Developer's Guide

By: Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty

Overview of this book

Blockchain applications provide a single-shared ledger to eliminate trust issues involving multiple stakeholders. It is the main technical innovation of Bitcoin, where it serves as the public ledger for Bitcoin transactions. Blockchain Developer's Guide takes you through the electrifying world of blockchain technology. It begins with the basic design of a blockchain and elaborates concepts, such as Initial Coin Offerings (ICOs), tokens, smart contracts, and other related terminologies. You will then explore the components of Ethereum, such as Ether tokens, transactions, and smart contracts that you need to build simple DApps. Blockchain Developer's Guide also explains why you must specifically use Solidity for Ethereum-based projects and lets you explore different blockchains with easy-to-follow examples. You will learn a wide range of concepts - beginning with cryptography in cryptocurrencies and including ether security, mining, and smart contracts. You will learn how to use web sockets and various API services for Ethereum. By the end of this Learning Path, you will be able to build efficient decentralized applications. This Learning Path includes content from the following Packt products: • Blockchain Quick Reference by Brenn Hill, Samanyu Chopra, Paul Valencourt • Building Blockchain Projects by Narayan Prusty
Table of Contents (37 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Chapter 22. Understanding Decentralized Applications

Almost all of the Internet-based applications we have been using are centralized, that is, the servers of each application are owned by a particular company or person. Developers have been building centralized applications and users have been using them for a pretty long time. But there are a few concerns with centralized applications that make it next to impossible to build certain types of apps and every app ends up having some common issues. Some issues with centralized apps are that they are less transparent, they have a single point of failure, they fail to prevent net censorship, and so on. Due to these concerns, a new technology emerged for the building of Internet-based apps called decentralized applications (DApps). 

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

  • An overview of the data structures, algorithms, and protocols used by some of the most popular DApps
  • Learning about some popular DApps that are built on top of other...