🧪 Quickly experiment with Solidity using a forked private testnet, from the mainnet, and swapping tokens from Uniswap

Scaffold-Eth x Buildbear lets you create your own private testnet, (optional) forked from the mainnet, with your own native token and ERC20 Token faucet and blockchain explorer

🐻 Features of Buildbear

Creating your private testnet

Using your personal native token faucet

Using your personal ERC20 faucet

Swap your tokens on Forked Uniswap

🏄‍♂️ Quick Start

Prerequisites: Node (v18 LTS) plus Yarn (v1.x) and Git

🚨 If you are using a version < v18 you will need to remove openssl-legacy-provider from the start script in package.json

1️⃣ clone/fork 🏗 scaffold-eth x buildbear:

git clone https://github.com/BuildBearLabs/scaffold-eth.git

2️⃣ install and create your private testnet (forked from the mainnet):

cd scaffold-eth
yarn install
yarn fork-bb

3️⃣ 🛰 deploy your SwapOnUniswap Contract:

cd scaffold-eth
yarn deploy

4️⃣ start your 📱 frontend:

🚨 if you have not created your private testnet please follow the the steps in point 2 above:

cd scaffold-eth
yarn start

5️⃣ you can use your 🚰 faucet directly from the terminal after creating your private tesnet:

# for native tokens
yarn faucet-bb native <Insert Amount (optional)> <Insert Your Wallet Address>

# for erc20 tokens
yarn faucet-bb USDC <Insert Amount (optional)> <Insert Your Wallet Address>

# Please note the supported ERC20 tokens below

# by default faucet mints 100 native / erc20 tokens

Supported ERC20 tokens that can be used :

1. USDC
2. USDT
3. DAI
4. BNB
5. BUSD
6. MATIC
7. WBTC
8. UNI
9. AAVE

# Please note the address for each ERC20 Tokens is automatically updated / changed based on the network that you have forked from

🔏 Edit your smart contracts in packages/hardhat/contracts

📝 Edit your frontend App.jsx in packages/react-app/src

💼 Edit your deployment scripts in packages/hardhat/deploy

📱 Open http://localhost:3000 to see the app

📚 Documentation

Documentation, tutorials, challenges, and many more resources, visit: docs.scaffoldeth.io

🔭 Learning Solidity

📕 Read the docs: https://docs.soliditylang.org

📚 Go through each topic from solidity by example editing YourContract.sol in 🏗 scaffold-eth

• Primitive Data Types
• Mappings
• Structs
• Modifiers
• Events
• Inheritance
• Payable
• Fallback

📧 Learn the Solidity globals and units

🛠 Buidl

Check out all the active branches, open issues, and join/fund the 🏰 BuidlGuidl!

• 🚤 Follow the full Ethereum Speed Run

• 🎟 Create your first NFT

• 🥩 Build a staking smart contract

• 🏵 Deploy a token and vendor

• 🎫 Extend the NFT example to make a "buyer mints" marketplace

• 🎲 Learn about commit/reveal

• ✍️ Learn how ecrecover works

• 👩‍👩‍👧‍👧 Build a multi-sig that uses off-chain signatures

• ⏳ Extend the multi-sig to stream ETH

• ⚖️ Learn how a simple DEX works

• 🦍 Ape into learning!

🏃💨 Speedrun Ethereum

Register as a builder here and start on some of the challenges and build a portfolio.

💬 Support Chat

Join the telegram support chat 💬 or buidlguidl discord to ask questions and find others building with 🏗 scaffold-eth!