type contract = { contractCode: string | null; isContractAddress: boolean; }; export const readAddressAsContract = async ( ethQuery: { getCode: (address: string) => string; }, address: string, ): Promise => { let contractCode; try { contractCode = await ethQuery.getCode(address); } catch (e) { contractCode = null; } const isContractAddress = contractCode ? contractCode !== '0x' && contractCode !== '0x0' : false; return { contractCode, isContractAddress }; };