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README.md

Minimal Swap PoC

A minimal end to end proof of concept of using Swap contracts written by Swarm and maintained here: https://github.com/ethersphere/swap-swear-and-swindle

All contract code imported from the above repo.

Ported to Hardhat and Ethers.io.

How to run

For scripts there is a script to setup SWAP contracts. To run it and make it persistent we can do the following:

# Run a node
npx hardhat node

# Run script to setup SWAP contracts on local hardhat node
npx hardhat run scripts/setup-swap.js --network localhost

Which will return you a list a list of addresses for ERC20, Alice, Bob, and their respective SWAP contracts. You can then interact with it by running a console:

npx hardhat console --network localhost

After setting up basic SWAP contracts, we can issue and redeem a cheque.

TODO: Turn copy-pasting into CLI arguments or automate it

  1. Copy paste the aliceSwapAddress into sign-cheque.js script. Then run:
npx hardhat run scripts/sign-cheque.js --network localhost
  1. Copy paste resulting signature and aliceSwapAddress into redeem-cheque.js, and run:
npx hardhat run scripts/redeem-cheque.js --network localhost

Now Alice has send a cheque to Bob, and Bob has received it from the Swap contract. Cheques can be sent and received off-chain, and only settled once Bob wants to.

Example task

npx hardhat balance --account 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266