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Building Blockchain Apps

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Building Blockchain Apps

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Students will:

  • Master cutting-edge blockchain development technologies including Tendermint and Cosmos
  • Build decentralized blockchain applications for e-commerce, marketplaces, finance, supply chains, healthcare, content distribution, and more
  • Help financial institutions enable virtual currencies and achieve revolutionary process improvements
  • Preview next-generation techniques that transcend the limitations of today’s cryptocurrencies
  • Description

    • Copyright 2020
    • Dimensions: 7" x 9-1/8"
    • Pages: 336
    • Edition: 1st
    • Book
    • ISBN-10: 0-13-517232-2
    • ISBN-13: 978-0-13-517232-2

    A Developer's Guide to Blockchain Programming Fundamentals
    Blockchain development is entering a period of explosive growth, as real applications gain traction throughout multiple industries and cryptocurrencies earn greater acceptance throughout the financial sector. Blockchain represents one of the most promising opportunities for developers to advance and succeed. Building Blockchain Apps is an accessible guide to today’s most advanced and robust blockchain programming models and architectures.
    Building on his pioneering experience, Michael Juntao Yuan covers a wide range of blockchain application development paradigms. The book starts with a concise introduction to blockchain and smart contract technologies. It then guides you through application development on Ethereum-compatible smart contract platforms. Ethereum is the largest and most robust blockchain ecosystem in the world.
    Coverage includes

    • Ethereum topics such as tools, application frameworks, internal data structures, external data interfaces, and future roadmap
    • An introduction to new blockchain data protocol based on ElasticSearch, which provides insights into the current state of smart contracts and enables new application designs
    • How to build an application-specific smart contract protocol by modifying and customizing the open source Ethereum Virtual Machine and its programming language tools
    • How to extend and support language features that are most suitable for particular kinds of smart contracts (e.g., smart contracts for e-commerce marketplaces) with the open source Lity project
    • How to customize and change the blockchain consensus layer beneath the application layer via the popular Tendermint and Cosmos SDK frameworks
    • A survey of cryptocurrency and financial topics from the developers’ point of view, providing an analytical framework for valuating cryptocurrencies and explaining the roles of crypto exchanges

    Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.


    Source Code

    Visit the author's site for source code examples from the book: buildingblockchainapps.com.


    Related Article

    Blockchain is the Ultimate Serverless Platform

    Author's Site

    Please visit the author's site at michaelyuan.com.

    Sample Content

    Online Sample Chapter

    Ethereum Nodes

    Table of Contents

    Foreword xvii
    Acknowledgments xix
    About the Author xxi

    Part I: Introduction 1
    Chapter 1: An Introduction to Blockchain 3

    The Blockchain 3
    The Collaborative Ledger 4
    Cryptocurrency 5
    Smart Contracts 5
    A Trustless Network 6
    New Ways of Collaborating 7
    The Fat Protocol 7
    In Code We Trust 8
    Conclusion 9
    Chapter 2: Reaching Consensus 11
    What Is Blockchain Consensus? 11
    Proof of Work (PoW) 12
    Proof of Stake (PoS) 12
    Delegated Proof of Stake (DPoS) 14
    Conclusion 14
    Chapter 3: Your First Blockchain App 15
    Smart Contract 16
    Front-End HTML 19
    JavaScript and web3.js 19
    In Action 21
    Share Your Dapp 22
    Conclusion 22
    Part II: An Introduction to Ethereum 23
    Chapter 4: Getting Started 25

    The BUIDL Way 26
    The Hard Way 29
    Conclusion 41
    Chapter 5: Concepts and Tools 43
    Ethereum Wallet and Basic Concepts 43
    Etherscan 45
    The TestRPC 46
    Interacting with Ethereum via GETH 48
    Interacting with Ethereum via web3 49
    Running an Ethereum Node 50
    Running a Private Ethereum Network 51
    Conclusion 53
    Chapter 6: Smart Contracts 55
    “Hello, World!” Again 55
    Learning Smart Contract Programming 57
    Building and Deploying the Smart Contract 59
    Calling Smart Contract Functions 65
    A New Language 68
    Conclusion 72
    Chapter 7: Decentralized Applications (Dapps) 73
    Dapp Stack 74
    Dapp Showcases 76
    Conclusion 79
    Chapter 8: Alternatives to Dapps 81
    JavaScript 81
    Python and Others 85
    Conclusion 86
    Part III: Ethereum in Depth 87
    Chapter 9: Inside Ethereum 89

    What Is Blockchain State? 89
    Ethereum State 92
    Trie (or Tree) 93
    Trie Structure in Ethereum 98
    Analyzing the Ethereum Database 100
    Conclusion 104
    Chapter 10: Blockchain Data Services 105
    Blockchain Explorers 105
    Harvesting Data 109
    Query Interface 115
    What’s Next? 119
    Conclusion 120
    Chapter 11: Smart Contract Search Engine 121
    Introduction to the Smart Contract Search Engine 121
    Getting Started with a Smart Contract Search Engine 123
    The FairPlay Dapp Example 128
    Use Cases 131
    Conclusion 132
    Chapter 12: Smart Contract Security and Best Practices 133
    Major Ethereum Smart Contract Hacks and Vulnerabilities 134
    Best Practices for Securing Smart Contracts 141
    Conclusion 143
    Chapter 13: The Future of Ethereum 145
    Ethereum 1.0 146
    Beyond Ethereum 1.0 150
    Ethereum 2.0 152
    Delivery Phases of Ethereum 2.0 154
    Post—Ethereum 2.0 Innovation 155
    Conclusion 155
    Part IV: Building Application Protocols 157
    Chapter 14: Extending the Ethereum Protocol 159

    Fully Compatible, Yet Faster 160
    Smart Enhancements to the EVM 160
    Safety First 165
    Conclusion 165
    Chapter 15: Extending Ethereum Tools 167
    Smart Contract Tools 168
    Dapp Tools 175
    Conclusion 178
    Chapter 16: Example Dapps 179
    Case Study 1: Valentines 179
    Case Study 2: WeBet 184
    Conclusion 201
    Chapter 17: Business Rules and Contracts 203
    An Example 204
    Rules Language 206
    More Business Examples 210
    Conclusion 214
    Chapter 18: Building an Application-Specific EVM 215
    Using libENI Functions 216
    Writing a libENI Function 222
    Deploying the libENI Function 224
    Conclusion 226
    Part V: Building Your Own Blockchain 227
    Chapter 19: Getting Started with Tendermint 229

    How It Works 229
    It Works as Follows 231
    Set Up a Node 231
    Set Up a Network 235
    Conclusion 236
    Chapter 20: The Business Logic 237
    The Protocol 238
    A Sample Application 240
    Java Implementation 242
    GO Implementation 247
    The Cosmos SDK 250
    Conclusion 252
    Chapter 21: Creating a Blockchain Client 253
    Overview of the Approach 254
    The Sample Application 255
    PHP 256
    Java 258
    Conclusion 260
    Part VI: Cryptoeconomics 261
    Chapter 22: The Cryptoeconomics of Token Design 263

    Network Utility Tokens 263
    Application Utility Tokens 266
    Security Tokens 266
    Token Valuation 267
    Advanced Topics 271
    Conclusion 274
    Chapter 23: Initial Coin Offerings 275
    A Brief History 275
    Utility of an ICO 276
    ICO vs. Traditional Equity Financing 278
    Evaluating an ICO Project 280
    ICO Participation Risk 282
    Conclusion 283
    Chapter 24: Cryptocurrency Exchanges 285
    Exchange Types 285
    Decentralization 287
    Products and Services 288
    Conclusion 289
    Appendix: Getting Started with CyberMiles 291
    Index 295


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