0g-chain/contracts

Kava EVM contracts

Contracts for the Kava EVM used by the Kava blockchain. Includes an ERC20 contract for wrapping native cosmos sdk.Coins.

Setup

npm install

Test

npm test

Development

# Watch contract + tests
npm run dev

# Watch tests only
npm run test-watch

Deploying contracts to test networks

A deploy script is included in this hardhat project to deploy a contract directly to a network. To deploy the contracts to different networks:

npx hardhat run --network <network-name> scripts/deploy.ts

Configuration for various <network-name>s above are setup in the hardhat config.

Production compiling & Ethermint JSON

Ethermint uses its own json format that includes the ABI and bytecode in a single file. The bytecode should have no 0x prefix and should be under the property name bin. This structure is built from the compiled code with npm ethermint-json.

The following compiles the contract, builds the ethermint json and copies the file to the evmutil:

npm build