Code Outline Remove Liquidity

A comprehensive guide to smart contract development using Moccasin - This lesson covers how to setup a local development environment and integrate Moccasin into your workflow. It also covers how to deploy, test, and audit your contracts.

DeFi Developer

Curve Cryptoswap
1. Remove Liquidity Overview
A comprehensive guide to building a Vyper smart contract lottery. The lesson covers how to use the Moccasin framework, write tests, and deploy the lottery contract to a local network. The lesson also discusses the importance of using Chainlink VRF for secure on-chain randomness. Duration: 1min
2. Code Outline Remove Liquidity
A comprehensive guide to smart contract development using Moccasin - This lesson covers how to setup a local development environment and integrate Moccasin into your workflow. It also covers how to deploy, test, and audit your contracts. Duration: 1min
3. Code Walkthrough Remove Liquidity
Explore how the remove_liquidity function works in Curve V2—burn LP shares, calculate token withdrawals, and handle ETH output. Duration: 4min
4. Exercise 1 Remove Liquidity
Withdraw your LP tokens by calling remove_liquidity—this exercise walks you through removing USDC liquidity from a Curve V2 pool. Duration: 1min
5. Solution 1 Remove Liquidity
Burn LP tokens and withdraw all available liquidity—this solution shows how to use remove_liquidity to exit a Curve V2 pool. Duration: 3min
6. Remove Liquidity One Coin Overview
Learn how to withdraw liquidity in a single token using remove_liquidity_one_coin—ideal for LPs who prefer ETH, WETH, or another token. Duration: 1min
7. Code Outline Remove Liquidity One Coin
A comprehensive guide to Vyper smart contracts development - Learn the basics of Vyper, build a secure lottery, and take your skills to the next level by developing a stablecoin. This lesson covers how to use Vyper to remove liquidity in a one-coin pool, involving steps such as calculating A and gamma, claiming admin fees, and updating the token out balance. Duration: 1min
8. Code Walkthrough Remove Liquidity One Coin
Dive into the remove_liquidity_one_coin function—burn LP tokens and withdraw a single token, with slippage checks and price scale adjustments. Duration: 1min
9. Code Walkthrough Calc Withdraw One Coin
Understand how calc_withdraw_one_coin calculates the exact amount a user receives when withdrawing in one token—factoring balances, fees, and precision. Duration: 8min
10. Exercise 2 Remove Liquidity One Coin
A beginner's guide to learning Vyper smart contract development and testing with Moccasin. The lesson covers how to use Moccasin to test smart contracts, including the basic Vyper syntax, deployment, and testing concepts with code examples. Duration: 1min
11. Solution 2 Remove Liquidity One Coin
A comprehensive guide to removing liquidity from a Curve pool using Vyper smart contracts. This lesson demonstrates how to call the `remove_liquidity_one_coin` function within a Vyper contract, preparing the necessary inputs such as LP shares and the token to be retrieved, and then verifying the successful execution of the function. Duration: 2min

Course Overview

About the course

What you'll learn

AMM math for Curve Cryptoswap

How liquidity is concentrated

Price-repegging

How function calls interact with the AMM

Curve Cryptoswap state variables

How the function exchange works

How to swap tokens

How to add and remove liquidity

Math for Curve Cryptoswap’s internal price oracle

Implicit differentiation

Course Description

Who is this course for?

  • Software Engineers
  • Web3 Developers
  • Finance Developers
  • AI Developers
  • Smart Contract Security Researchers

Potential Careers

Smart Contract Auditor

$100,000 - $200,000 (avg. salary)

Blockchain Financial Analyst

$100,000 - $150,000 (avg. salary)

DeFi Developer

$75,000 - $200,000 (avg. salary)

Smart Contract Engineer

$100,000 - $150,000 (avg. salary)

Web3 developer

$60,000 - $150,000 (avg. salary)

Web3 Developer Relations

$85,000 - $125,000 (avg. salary)

Meet your instructors

Tasuku Nakamura

Tasuku Nakamura

Founder at smartcontract.engineer

Smart contract engineer and educator.

Last updated on May 15, 2025