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

Tools in Hyperledger


An often overlooked aspect of any application is the need for helpful tools to manage the lifecycle of that application. Tools, such as software to ease deployment, debugging, and design, can make a tremendous difference in the ease of use of a system, for developers and users alike. Most public blockchains are severely hampered by the lack of high-quality tools and support. The Hyperledger ecosystem, however, continues to invest in building excellent support tools.

Hyperledger Caliper

One of the common needs of any system is benchmarking. Hyperledger Caliper is a blockchain-oriented benchmarking tool, designed to help blockchain architects ensure that the system can perform fast enough to meet the needs of the hosting organizations. Using a set of pre-defined, common use cases, Hyperledger Caliper will report an assortment of critical performance measurements, such as resource usage, Transactions Per Second (TPS), transaction latency, and so on.

Using Caliper, a team working...