This hardhat template comes with some setup scripts, tasks and an example docker compose service to get contract development into your app quickly.
The idea is that it can be dropped into any frontend project using docker compose easily. Allowing you to quickly iterate on contract development and integration with your frontend.
Clone the repo into your project directory:
git clone https://github.com/garethfuller/hardhat-template.git hardhat
Add the following service to your docker-compose.yml
:
hardhat:
build:
context: ./hardhat
dockerfile: Dockerfile.dev
restart: always
command: yarn run dev
volumes:
- ./hardhat:/app
- /app/node_modules
- ./<PATH_TO_FRONTEND_DIR>/contracts:/app/tmp/contracts
ports:
- 8545:8545
Once the service has been started with docker-compose up
you contracts will be deployed to the localhost:8545 RPC. When you save the contract files they will be redeployed.
When contracts are compiled and deployed the output files are saved to /deployments/<network>
in the hardhat container. Mounting this folder to a volume in the service as we did above with - ./<PATH_TO_FRONTEND_DIR>/contracts:/app/deployments
means that these contracts will then be available in your frontend directory under /contracts
.
First add your credentials to the .env.example
file and rename to .env
.
To deploy to networks other than localhost you can run commands like:
docker-compose run hardhat mainnet:deploy
For a full list of deployment commands for different networks see package.json.
There are a default tasks for interacting with the localhost network when it's up and running.
docker-compose exec hardhat accounts # fetch list of default network accounts
docker-compose exec hardhat balance <address> # Get balance for an address
docker-compose exec hardhat send --from <address> --to <address> --amount 10 # Send ETH from one address to another
docker-compose exec hardhat blockNumber # Get the current blocknumber