README.md

ethers-abi-bigquery

This module repackages ethjs-abi for use in BigQuery, to decode Ethereum event logs.

Example usage:

CREATE TEMP FUNCTION
  DECODE_ERC721_TRANSFER(data STRING, topics ARRAY<STRING>)
  RETURNS STRUCT<`from` STRING, `to` STRING, tokenId STRING>
  LANGUAGE js AS """
    var CRYPTOKITTY_ABI = [
      "event Transfer(address from, address to, uint256 tokenId)",
    ];
    var iface = new abi.Interface(CRYPTOKITTY_ABI);
    return iface.decodeEventLog("Transfer", data, topics);
"""
OPTIONS
  ( library="https://storage.googleapis.com/ens-manager.appspot.com/ethers-abi.js" );
SELECT
  DECODE_ERC721_TRANSFER(data, topics) AS transfer
FROM
  `bigquery-public-data.ethereum_blockchain.logs`
WHERE
  topics[SAFE_OFFSET(0)] = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
  AND address = "0x06012c8cf97bead5deae237070f9587f8e7a266d"
LIMIT 100;

The above query returns decoded CryptoKitty transfer events.