eth_getLogs

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

Request

curl https://tn.henesis.io/ethereum/mainnet?clientId=<clientId> \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"topics":["0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b"]}],"id":74}'

Response

{
"id":1,
"jsonrpc":"2.0",
"result": [{
"logIndex": "0x1", // 1
"blockNumber":"0x1b4", // 436
"blockHash": "0x8216c5785ac562ff41e2dcfdf5785ac562ff41e2dcfdf829c5a142f1fccd7d",
"transactionHash": "0xdf829c5a142f1fccd7d8216c5785ac562ff41e2dcfdf5785ac562ff41e2dcf",
"transactionIndex": "0x0", // 0
"address": "0x16c5785ac562ff41e2dcfdf829c5a142f1fccd7d",
"data":"0x0000000000000000000000000000000000000000000000000000000000000000",
"topics": ["0x59ebeb90bc63057b6515673c3ecf9438e5058bca0f92585014eced636878c9a5"]
},{
...
}]
}

Parameters

  • 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) With the addition of EIP-234 (Geth >= v1.8.13 or Parity >= v2.1.0), blockHash is 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 the filter criteria, then neither fromBlock nor toBlock are allowed.

Returns

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

Name

Type

Description

removed

TAG

true when the log was removed, due to a chain reorganization. false if it is a valid log.

logIndex

QUANTITY

Integer of the log index position in the block. null when it is a pending log.

transactionIndex

QUANTITY

Integer of the transactions index position log was created from. null when pending.

transactionHash

32-byte DATA

Hash of the transactions this log was created from. null when pending.

blockHash

32-byte DATA

Hash of the block where this log was in. null when pending.

blockNumber

QUANTITY

The block number where this log was in. null when pending.

address

20-byte DATA

Address from which this log originated.

data

DATA

Contains the non-indexed arguments of the log.

topics

Array of DATA

Array of 0 to 4 32-byte 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.).

Reference

​https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getlogs​ ​