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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

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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1
Part 1: Introduction to DeFi Application Development
5
Part 2: Design and Implementation of a DeFi Application for Trading Cryptos
11
Part 3: Building a DeFi Application for Staking and Yield Farming
14
Part 4: Building a Crypto Loan App for Lending and Borrowing

Implementing token pair smart contracts

A token pair smart contract is a DEX component used to support operations on each trading pair and maintain the token reserves. Each instance of a token pair smart contract represents a liquidity pool for a token pair of the DEX.

We will start implementing the smart contracts for our DEX in this section. Before writing code, we encourage you to copy the code from the chapter05-start branch of the Git repository of this book because it contains all the working code we created in previous chapters as well as the smart contract interfaces that we will use in this chapter.

If you want to continue the work you did in the previous chapter, you can just create a folder at src/backend/contracts/interfaces and put the following three files into the directory: IAMMRouter.sol, IPairFactory.sol, and ITokenPair.sol. These three Solidity files define the thee interfaces with their functions that we will implement in this chapter. We will explain more...

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