enviodev/indexing-transactions

Transaction Data

HyperIndex does not have a native transaction handler (onTransaction). Transaction data is accessed through event handlers via field_selection in config.yaml.

Configuring Transaction Fields

By default, event.transaction is empty. Select needed fields explicitly:

contracts:
  - name: MyContract
    events:
      - event: Transfer(indexed address from, indexed address to, uint256 value)
        field_selection:
          transaction_fields:
            - hash
            - from
            - to
            - gasUsed
            - value

Or globally for all events:

field_selection:
  transaction_fields:
    - hash
    - from
    - to

Accessing in Handlers

Contract.Transfer.handler(async ({ event, context }) => {
  const txHash = event.transaction.hash;
  const txFrom = event.transaction.from;
  const gasUsed = event.transaction.gasUsed;
});

Available Transaction Fields

transactionIndex, hash, from, to, gas, gasPrice, maxPriorityFeePerGas, maxFeePerGas, cumulativeGasUsed, effectiveGasPrice, gasUsed, input, nonce, value, v, r, s, contractAddress, logsBloom, root, status, yParity, chainId, maxFeePerBlobGas, blobVersionedHashes, type, l1Fee, l1GasPrice, l1GasUsed, l1FeeScalar, gasUsedForL1

Available Block Fields

Block fields are also configurable via block_fields. Default: number, timestamp, hash.

Additional: parentHash, nonce, sha3Uncles, logsBloom, transactionsRoot, stateRoot, receiptsRoot, miner, difficulty, totalDifficulty, extraData, size, gasLimit, gasUsed, uncles, baseFeePerGas, blobGasUsed, excessBlobGas, parentBeaconBlockRoot, withdrawalsRoot, l1BlockNumber

Deep Documentation

Full reference: https://docs.envio.dev/docs/HyperIndex-LLM/hyperindex-complete