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  • Book Overview & Buying Building Full Stack DeFi Applications
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Building Full Stack DeFi Applications

Building Full Stack DeFi Applications

By : Zhou
4.6 (5)
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Building Full Stack DeFi Applications

Building Full Stack DeFi Applications

4.6 (5)
By: Zhou
Buy this Book

Overview of this book

Enter the world of Decentralized Finance (DeFi) with Building Full Stack DeFi Applications. Understand how this blockchain-based financial technology, designed to manage crypto assets, runs independently without centralized financial institutions like banks and brokerages, eliminating the fees that banks and other financial companies charge for using their services. This book will show you how DeFi solutions are built with smart contracts running on blockchains and how they allow users to gain and earn crypto assets based on the trust of the smart contracts. This book uncovers the inner workings of DeFi by guiding you through the mathematical foundations and teaching you how to build real-world DeFi products with Solidity and JavaScript. As you progress through the chapters, you’ll learn how to implement smart contracts of liquidity pools to trade cryptocurrencies and implement staking, including farming features that allow users to earn. You’ll also find out how to create asset pools that allow users to lend and borrow cryptocurrencies and generate interest. Additionally, you’ll discover how to use Web3 libraries to build the frontend of DeFi products. By the end of this book, you’ll will be well acquainted with popular tools, libraries, and design patterns for implementing a full-stack DeFi application with Web3 and Solidity.
Table of Contents (21 chapters)
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Preface
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Preface
Who this book is for
What this book covers
To get the most out of this book
Download the example code files
Conventions used
Get in touch
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1
Part 1: Introduction to DeFi Application Development
Part 1: Introduction to DeFi Application Development
Free Chapter
2
Chapter 1: Introduction to DeFi
Chapter 1: Introduction to DeFi
What is DeFi?
Overview of DeFi applications
Architecture of DeFi applications
Vulnerabilities of DeFi applications
Summary
Further reading
3
Chapter 2: Getting Started with DeFi Application Development
Chapter 2: Getting Started with DeFi Application Development
Technical requirements
Creating a DeFi project
Writing, compiling, and deploying a smart contract in a local environment
Deploying a smart contract on Testnet
Testing and debugging the smart contract
Summary
Further reading
4
Chapter 3: Interacting with Smart Contracts and DeFi Wallets in the Frontend
Chapter 3: Interacting with Smart Contracts and DeFi Wallets in the Frontend
Technical requirements
Overview of DeFi application frontend development
Deploying smart contract metadata to the frontend
Connecting to a DeFi wallet
Reading data from blockchain
Making transactions on blockchain
Summary
5
Part 2: Design and Implementation of a DeFi Application for Trading Cryptos
Part 2: Design and Implementation of a DeFi Application for Trading Cryptos
6
Chapter 4: Introduction to Decentralized Exchanges
Chapter 4: Introduction to Decentralized Exchanges
The three main types of DEXs
The mathematics of AMMs
The architecture of AMM
Summary
7
Chapter 5: Building Crypto-Trading Smart Contracts
Chapter 5: Building Crypto-Trading Smart Contracts
Implementing token pair smart contracts
Implementing pair factory smart contracts
Implementing AMM router smart contracts
Verifying DEX smart contracts
Summary
8
Chapter 6: Implementing a Liquidity Management Frontend with Web3
Chapter 6: Implementing a Liquidity Management Frontend with Web3
Implementing URL routes for liquidity management
Retrieving liquidity information
Implementing the liquidity provisioning page
Implementing the liquidity removal page
Verifying liquidity management pages
Summary
9
Chapter 7: Implementing a Token-Swapping Frontend with Web3
Chapter 7: Implementing a Token-Swapping Frontend with Web3
Overview of the token swapping frontend
Generating token swapping paths
Identifying the best path, price, and price Impact
Swapping token – after a wallet is connected
Improving user experiences for token swapping
Summary
10
Chapter 8: Working with Native Tokens
Chapter 8: Working with Native Tokens
Diving into the WETH smart contract
Refactoring smart contracts to support native tokens in a DEX
Implementing the DEX frontend for the native token
Summary
11
Part 3: Building a DeFi Application for Staking and Yield Farming
Part 3: Building a DeFi Application for Staking and Yield Farming
12
Chapter 9: Building Smart Contracts for Staking and Farming
Chapter 9: Building Smart Contracts for Staking and Farming
Understanding the architectures of staking and farming
Calculating the reward for staking and farming
Implementing the staking pool smart contract
Verifying staking pool smart contracts
Summary
13
Chapter 10: Implementing a Frontend for Staking and Farming
Chapter 10: Implementing a Frontend for Staking and Farming
Overview of frontend pages for staking and farming
Implementing a staking pool listing dashboard
Implementing pages for creating staking pools and supplying rewards
Implementing frontend components for deposits, withdrawals, and harvesting
Implementing the farming frontend
Summary
14
Part 4: Building a Crypto Loan App for Lending and Borrowing
Part 4: Building a Crypto Loan App for Lending and Borrowing
15
Chapter 11: An Introduction to Crypto Loans
Chapter 11: An Introduction to Crypto Loans
Technical requirements
Exploring the characteristics of a crypto loan
Designing crypto loan smart contracts
Understanding interest rate model and pool configuration
Implementing an asset pool share and its deployer
Exploring a crypto loan system by example
Summary
16
Chapter 12: Implementing an Asset Pool Smart Contract for a Crypto Loan
Chapter 12: Implementing an Asset Pool Smart Contract for a Crypto Loan
Technical requirements
Implementing the code to manage the asset pools
Managing records in user ledgers
Implementing the functions for user requests
Deploying and testing the crypto loan smart contracts
Summary
17
Chapter 13: Implementing a Price Oracle for Crypto Loans
Chapter 13: Implementing a Price Oracle for Crypto Loans
How price manipulation attacks are carried out on crypto loan systems
Building an on-chain price oracle with cumulative prices
Implementing a manipulation-resistant price oracle smart contract
Deploying, maintaining, and verifying the price oracle
Summary
18
Chapter 14: Implementing the Crypto Loan Frontend with Web3
Chapter 14: Implementing the Crypto Loan Frontend with Web3
Technical requirements
Implementing the account summary and asset pool listing page
Implementing the pages for deposit, withdrawal, borrowing, and repayment
Best practices for decentralized crypto loan systems
Summary
19
Index
Index
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20
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Preface

Decentralized Finance (DeFi) is one of the most popular technologies of the Web3 era. It incentivizes people to come to the world of blockchain for investment and makes blockchain the Internet of Money. Since Ethereum was born, there have been tremendous Decentralized Applications (DApps) built on top of various blockchain networks. DeFi applications constitute a giant share of DApps because of the innovation they bring and their ease of adoption by new users.

There are many resources that introduce the Web3 revolution, including elaborating the concepts and usage of DeFi applications. However, when interacting with various DeFi applications such as Decentralized Exchanges (DEXs) or crypto loan systems, users may be curious about the concepts involved (such as liquidity pools), the mathematics behind the scenes, and how they might build a profitable DeFi application. This book will reveal the mystery and make you an expert in building various DeFi applications.

After exploring various DeFi applications on the market, I found that DeFi jargon and applications usually come from simple mathematics and classic financial principles. If you have an engineering background, it will be easier for you to dive in and implement DeFi concepts with code once you understand the underlying principles.

In this book, you will explore some of the most popular DeFi applications. For every DeFi application, you will start by learning what it is, how it works with the aid of mathematical formulas and architecture diagrams, and then implement the core – the math and the business logic – and finally, you will see how we wrap the core with UI code to make it a ready-to-use application.

There are thousands of DeFi projects on the market that offer various applications and continue to empower blockchain as the Internet of Money. A lot of traditional companies are approaching Web3 and especially applying DeFi to monetize their products and acquire customers. Meanwhile, Web3-native projects and start-ups are still booming. This book will help you gain practical experience in building and adopting DeFi and Web3 technologies for your projects and businesses.

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