package snt 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("0x744d70fdbe2ba4cf95131626614a1763df805b9e"), // mainnet 5: common.HexToAddress("0x3d6afaa395c31fcd391fe3d562e75fe9e8ec7e6a"), // goerli } func ContractAddress(chainID uint64) (common.Address, error) { addr, exists := contractAddressByChainID[chainID] if !exists { return *new(common.Address), errorNotAvailableOnChainID } return addr, nil }