Function init

init(
    apiKey?: string,
    chain?: string | number | null,
    timeout?: string | number | null,
    request?: Transport,
): EtherscanApi
Create an Etherscan API client.
Parameters
- OptionalapiKey: string
  Your Etherscan API key (works across all chains in V2). Required.
- Optionalchain: string | number | null
  Chain name (e.g. 'sepolia', 'arbitrum') or numeric chainid; defaults to Ethereum mainnet
- Optionaltimeout: string | number | null
  Request timeout in milliseconds (default 10000); must be positive and finite. A numeric string, e.g. from an environment variable, is accepted.
- Optionalrequest: Transport
  Custom HTTP transport; defaults to a built-in node:https/node:http request
Returns EtherscanApi
Throws
If apiKey is missing or invalid, or chain, timeout or request is invalid.
- Defined in src/init.ts:41