Function getChain

scripts/hardhat/viem-helper.ts:41–59

(hre: HardhatRuntimeEnvironment)

 * We need to load the chain manually.
 */
export const getChain = (hre: HardhatRuntimeEnvironment) => {
  const name = hre.network.name
  const id = hre.network.config.chainId
  const url = (hre.network.config as { url?: string }).url

  if (id == null) {
    throw new Error(`chain ID for network ${name} is required`)
  }
  if (url == null || url === '') {
    throw new Error(`url for network ${name} is required`)
  }

  return defineChain({
    ...(chainDefinitions[name as keyof typeof chainDefinitions] ?? localhost),
    // patch hardhat configurable fields
    ...(id != null ? { id } : undefined),
    ...(url != null ? { rpcUrls: { default: { http: [url] } } } : undefined),
  })
}

export const createWalletClient = <T extends Account>(hre: HardhatRuntimeEnvironment, account: T) =>
  viemCreateWalletClient({ account, chain: getChain(hre), transport: http() })