Hardhat-StartProject

Environment(Ubuntu20.04)

Nodejs

sudo apt install curl curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash nvm install node nvm install 14.18.0 nvm ls nvm use 14..0

Create a new project

mkdir hardhat-tutorial cd hardhat-tutorial npm init --yes npm install --save-dev hardhat

Install VSCode

sudo snap install --classic code

Install Sublime

sudo snap install --classic sublime-text

Compile

npx hardhat compile

Deploy

ALCHEMY_API_KEY

Go to https://www.alchemyapi.io, sign up, create a new App in its dashboard, and replace "KEY" with its key.

ROPSTEN_PRIVATE_KEY

Replace this private key with your Ropsten account private key. To export your private key from Metamask, open Metamask and go to Account Details > Export Private Key. Be aware of NEVER putting real Ether into testing accounts.

Deploy to testnet

npx hardhat run scripts/deploy.js --network ropsten

Test on local

Terminal 1

npx hardhat node

Terminal 2

npx hardhat run scripts/deploy.js --network localhost