Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying  Building Full Stack DeFi Applications
  • Table Of Contents Toc
  • Feedback & Rating feedback
 Building Full Stack DeFi Applications

Building Full Stack DeFi Applications

By : Zhou
4.6 (5)
close
close
 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)
close
close
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 a Price Oracle for Crypto Loans

In the previous chapter, you learned that the decentralized crypto loan smart contacts rely heavily on token prices and that the prices help maintain the balance between liquidity for collaterals and borrowed assets. Inaccurate price information may lead to the loss of assets, affecting liquidity and resulting in inadequate funds for borrowing and withdrawal. Even worse, the attackers can drain all the funds by manipulating the price utilized by the crypto loan system. Building a reliable and manipulation-resistant price oracle is essential for a crypto loan system.

A price oracle is a source of truth for token prices that can be accessed by smart contracts running on the blockchain. The price oracle we will build in this chapter supports all the tokens that have the WETH liquidity pools (e.g., FOO/WETH) in the DEX we built in Part 2 of this book.

By reading this chapter, you will learn the following:

  • How price manipulation...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY