You're reading from Building Full Stack DeFi Applications

Product type Book

Published in Mar 2024

Publisher Packt

ISBN-13 9781837634118

Pages 490 pages

Edition 1st Edition

Languages

Concepts

Blockchain

Author (1):

Samuel Zhou

Table of Contents (21) Chapters

Preface

1. Part 1: Introduction to DeFi Application Development

2. Chapter 1: Introduction to DeFi

3. Chapter 2: Getting Started with DeFi Application Development

4. Chapter 3: Interacting with Smart Contracts and DeFi Wallets in the Frontend

5. Part 2: Design and Implementation of a DeFi Application for Trading Cryptos

6. Chapter 4: Introduction to Decentralized Exchanges

7. Chapter 5: Building Crypto-Trading Smart Contracts

8. Chapter 6: Implementing a Liquidity Management Frontend with Web3

9. Chapter 7: Implementing a Token-Swapping Frontend with Web3

10. Chapter 8: Working with Native Tokens

11. Part 3: Building a DeFi Application for Staking and Yield Farming

12. Chapter 9: Building Smart Contracts for Staking and Farming

13. Chapter 10: Implementing a Frontend for Staking and Farming

14. Part 4: Building a Crypto Loan App for Lending and Borrowing

15. Chapter 11: An Introduction to Crypto Loans

16. Chapter 12: Implementing an Asset Pool Smart Contract for a Crypto Loan

17. Chapter 13: Implementing a Price Oracle for Crypto Loans

18. Chapter 14: Implementing the Crypto Loan Frontend with Web3

19. Index

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Implementing the liquidity removal page

In this section, we will go through the implementation of the liquidity removal page, RemoveLiquidity.js. A snapshot of this page is shown in Figure 6.10:

Figure 6.10 – Snapshot of the liquidity removal page

With the liquidity removal page, a user can select the percentage of liquidity or the amount of LP tokens they want to remove. By removing the liquidity, the user can receive the pooled tokens in return, meanwhile, the LP tokens are automatically burned.

Next, let’s dive into the frontend workflow of liquidity removal.

Frontend workflow of liquidity removal

Before implementing the UI of liquidity removal, let’s go through the frontend workflow first. When removing liquidity, the UI page should allow the user to input the amount of LP tokens they want to remove, then the UI code should check with the LP token smart contract to see whether the AMM router can transfer the LP token from...