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Blockchain with Hyperledger Fabric

Blockchain with Hyperledger Fabric - Second Edition

By : Nitin Gaur, Salman Baset, Anthony O'Dowd, Novotny, Luc Desrosiers, Ramakrishna, Baset
4.6 (8)
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Blockchain with Hyperledger Fabric

Blockchain with Hyperledger Fabric

4.6 (8)
By: Nitin Gaur, Salman Baset, Anthony O'Dowd, Novotny, Luc Desrosiers, Ramakrishna, Baset

Overview of this book

Blockchain with Hyperledger Fabric - Second Edition is a refreshed and extended version of the successful book on practical Hyperledger Fabric blockchain development. This edition includes many new chapters, alongside comprehensive updates and additions to the existing ones. Entirely reworked for Hyperledger Fabric version 2, this edition will bring you right up to date with the latest in blockchain. Using a real-world Trade Finance and Logistics example, with working code available on GitHub, you’ll really understand both how and why Hyperledger Fabric can be used to maximum effect. This book is your comprehensive guide and reference to explore and build blockchain networks using Hyperledger Fabric version 2. This edition of the book begins by outlining the evolution of blockchain, including an overview of relevant blockchain technologies. Starting from first principles, you’ll learn how to design and operate a permissioned blockchain network based on Hyperledger Fabric version 2. You will learn how to configure the main architectural components of a permissioned blockchain network including Peers, Orderers, Certificate Authorities, Channels, and Policies. You’ll then learn how to design, develop, package, and deploy smart contracts, and how they are subsequently used by applications. This edition also contains chapters on DevOps, blockchain governance, and security, making this your go-to book for Hyperledger Fabric version 2.
Table of Contents (18 chapters)
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16
Another Book You May Enjoy
17
Index

Exercising the application through a presentation layer

The service-layer applications we have designed, such as the importer application, expose REST APIs for invocation by users. The most direct way for a user to exercise these applications is by sending an HTTP query. But an HTTP query, though simple to frame for a technically skilled person, may look cryptic to the laypeople who are our applications' target users. Therefore, it is common practice to mask the complexity of framing such HTTP queries through applications that provide more intuitive interfaces, which present easy-to-understand information and options to users. For example, consider the trade request we demonstrated earlier using curl. All an importer really needs to specify is the ID of the proposed trade, the description of goods, the amount, and the exporter to whom the proposal is being made. An ideal presentation application would prompt the user to enter these pieces of information, and possibly offer a...

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Blockchain with Hyperledger Fabric
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