A sample CoW protocol smart order contract.

CoW protocol supports EIP-1271 signatures. While this is typically thought of as a way for Smart Contract wallets to sign things, we can leverage this standard for creating spcial order types on CoW with custom validation logic.

• Node.js: Recommended version 16.x or 18.x
• npm: Must be version 8 or newer

npx hardhat test

In order to run the scripts and place a sample order, first make sure you have an Infura access key and a private key setup:

export INFURA_PROJECT_ID="..."
export PRIVATE_KEY="0x..."

Then you can create orders:

npx hardhat run scripts/placeOrder.js

You can also cancel created orders:

ORDER_ADDRESS="0x..." npx hardhat run scripts/cancelOrder.js