Function tryFetchAbiFromExplorer

packages/cli/src/utils/etherscan.ts:38–57

(address: string, chainId: number | string)

 * @returns The ABI as a JSON object or undefined if the fetch fails.
 */
export async function tryFetchAbiFromExplorer(address: string, chainId: number | string): Promise<unknown> {
  try {
    const result = await runRequest<string>(chainId, {
      module: 'contract',
      action: 'getabi',
      address,
    });

    if (!result) {
      return undefined;
    }

    return JSON.parse(result);
  } catch (e) {
    if (e instanceof Error && e.message.includes('Contract source code not verified')) {
      return undefined;
    }
    throw e;
  }
}

/**
 * Fetches the deployment height of a contract from Etherscan.