package registrar import ( "errors" "github.com/ethereum/go-ethereum/common" ) var errorNotAvailableOnChainID = errors.New("not available for chainID") var contractAddressByChainID = map[uint64]common.Address{ 1: common.HexToAddress("0xDB5ac1a559b02E12F29fC0eC0e37Be8E046DEF49"), // mainnet 3: common.HexToAddress("0xdaae165beb8c06e0b7613168138ebba774aff071"), // ropsten } func ContractAddress(chainID uint64) (common.Address, error) { addr, exists := contractAddressByChainID[chainID] if !exists { return *new(common.Address), errorNotAvailableOnChainID } return addr, nil }