const chainIds: { [name: string]: number } = {
  homestead: 1,
  ethereum: 1,
  mainnet: 1,
  ropsten: 3,
  rinkeby: 4,
  goerli: 5,
  optimism: 10,
  cronos: 25,
  kovan: 42,
  bsc: 56,
  bnb: 56,
  "optimism-kovan": 69,
  bscTestnet: 97,
  gnosis: 100,
  xdai: 100,
  matic: 137,
  polygon: 137,
  opera: 250,
  ftm: 250,
  fantom: 250,
  "ftm-testnet": 4002,
  "optimism-goerli": 420,
  arbitrum: 42161,
  avalanche: 43114,
  avax: 43114,
  mumbai: 80001,
};

export default chainIds;