Kava Ethereum Bridge

A contract for cross-chain ERC20 token transfers.

Setup

npm install

Test

npm test

Development

# Watch contract + tests
npm run dev

# Watch tests only
npm run test-watch

Deploy with Hardhat

KAVA_BRIDGE_RELAYER_ADDRESS=0x6B1088f788b412Ad1280F95240d56B886A64bc05 npx hardhat run scripts/deploy.ts

Compatibility with Ethermint

Ethermint has their own json format for a compiled contract. The following converts the abi field to a stringified array, renames bytecode field name to bin with the leading 0x trimmed.

jq '.abi = (.abi | tostring) | {abi, bin: .bytecode[2:] }' < artifacts/contracts/ERC20MintableBurnable.sol/ERC20MintableBurnable.json > ethermint_json/ERC20MintableBurnable.json

This is performed by the root Makefile in the make compile-contracts command.