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eth_getLogs

Returns an array of all logs matching a given filter object.

This method will use 80 Compute Units.

Reference: Here

Parameters

  1. Object - The filter options:

  • fromBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.

  • toBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.

  • address: DATA|Array, 20 Bytes - (optional) Contract address or a list of addresses from which logs should originate.

  • topics: Array of DATA, - (optional) Array of 32 Bytes DATA topics. Topics are order-dependent. Each topic can also be an array of DATA with "or" options.

  • blockhash: DATA, 32 Bytes - (optional, future) With the addition of EIP-234, blockHash will be a new filter option which restricts the logs returned to the single block with the 32-byte hash blockHash. Using blockHash is equivalent to fromBlock = toBlock = the block number with hash blockHash. If blockHash is present in in the filter criteria, then neither fromBlock nor toBlock are allowed.

params: [
  {
    topics: [
      "0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b",
    ],
  },
]

Returns

See eth_getFilterChanges:

Array - Array of log objects, or an empty array if nothing has changed since last poll.

  • For filters created with eth_newBlockFilter the return are block hashes (DATA, 32 Bytes), e.g. ["0x3454645634534..."].

  • For filters created with eth_newPendingTransactionFilter the return are transaction hashes (DATA, 32 Bytes), e.g. ["0x6345343454645..."].

  • For filters created with eth_newFilter logs are objects with following params:

    • removed: TAG - true when the log was removed, due to a chain reorganization. false if its a valid log.

    • logIndex: QUANTITY - integer of the log index position in the block. null when its pending log.

    • transactionIndex: QUANTITY - integer of the transactions index position log was created from. null when its pending log.

    • transactionHash: DATA, 32 Bytes - hash of the transactions this log was created from. null when its pending log.

    • blockHash: DATA, 32 Bytes - hash of the block where this log was in. null when its pending. null when its pending log.

    • blockNumber: QUANTITY - the block number where this log was in. null when its pending. null when its pending log.

    • address: DATA, 20 Bytes - address from which this log originated.

    • data: DATA - contains one or more 32 Bytes non-indexed arguments of the log.

    • topics: Array of DATA - Array of 0 to 4 32 Bytes DATA of indexed log arguments. (In solidity: The first topic is the hash of the signature of the event (e.g. Deposit(address,bytes32,uint256)), except you declared the event with the anonymous specifier.)

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