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)

Rich history database with OBP

OBP uses the Hyperledger Fabric history database to manage the ledger and present ledger transaction information in the console. Only chaincodes can access this history database and it cannot be exposed to any external applications to query for analytics. Analytics cannot be ignored in any business, even if they provide blockchain services. Hence, OBP integrates the rich history database to fulfill this requirement.

The rich history database is external to OBP and contains data about the blockchain ledger's transactions on the channels you select. You can integrate the rich history database into the OBP instance console and select the channels whose data needs to be captured in the database. Once the rich history database is enabled on a channel, then all the transactions on the channel sync to the database. This level of data collection makes...