Book Image

Oracle Blockchain Quick Start Guide

By : Vivek Acharya, Anand Eswararao Yerrapati, Nimesh Prakash
Book Image

Oracle Blockchain Quick Start Guide

By: Vivek Acharya, Anand Eswararao Yerrapati, Nimesh Prakash

Overview of this book

Hyperledger Fabric empowers enterprises to scale out in an unprecedented way, allowing organizations to build and manage blockchain business networks. This quick start guide systematically takes you through distributed ledger technology, blockchain, and Hyperledger Fabric while also helping you understand the significance of Blockchain-as-a-Service (BaaS). The book starts by explaining the blockchain and Hyperledger Fabric architectures. You'll then get to grips with the comprehensive five-step design strategy - explore, engage, experiment, experience, and in?uence. Next, you'll cover permissioned distributed autonomous organizations (pDAOs), along with the equation to quantify a blockchain solution for a given use case. As you progress, you'll learn how to model your blockchain business network by defining its assets, participants, transactions, and permissions with the help of examples. In the concluding chapters, you'll build on your knowledge as you explore Oracle Blockchain Platform (OBP) in depth and learn how to translate network topology on OBP. By the end of this book, you will be well-versed with OBP and have developed the skills required for infrastructure setup, access control, adding chaincode to a business network, and exposing chaincode to a DApp using REST configuration.
Table of Contents (8 chapters)

Setting up chaincode development

In this section, you will learn how to develop chaincode for the university use case that we used in previous chapters.

Choosing the language for development (GO, Node.js, or Java)

Programming skills are very much required to write chaincode. As blockchain has a distributed ledger, only the Go language was supported in the initial versions of Hyperledger Fabric (HLF). However, with the evolution of HLF, it now supports multiple languages and plans to add more in the future. As of Fabric version 1.3, it supports writing chaincode in Go, Node.js, and Java. To explore each of these, you can download samples from under the Developer tools tab in the OBP instance console.