permit2

Backwards compatible, low-overhead, next generation token approval/meta-tx system.

Contributing

You will need a copy of Foundry installed before proceeding. See the installation guide for details.

Setup

git clone https://github.com/Uniswap/permit2.git
cd permit2

Lint

forge fmt [--check]

Run Tests

# unit
forge test

# integration
source .env
FOUNDRY_PROFILE=integration forge test

Update Gas Snapshots

forge snapshot

Acknowledgments

Inspired by permit-everywhere.