eth_getLogs

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

Parameters

Object - The filter options:

• fromBlock: QUANTITY|TAG - (optional, default: "latest") Value:

• Integer block number

• "latest" for the last mined block

• 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.

params: [
  {
    "address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907",
    "topics": [
      "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
    ],
    "blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"
  }
]

Returns

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

• 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 declare the event with the anonymous specifier.

Request example

Curl

curl https://ethereum.api.watchdata.io/node/jsonrpc?api_key=your_api_key
-X POST \
-d '{"jsonrpc":"2.0","method":"eth_getLogs","params":[{"address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907","topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"],"blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb"}],"id":0}'

Postman

Result

{
    "id": 0,
    "jsonrpc": "2.0",
    "result": [
        {
            "address": "0xb59f67a8bff5d8cd03f6ac17265c550ed8f33907",
            "blockHash": "0x8243343df08b9751f5ca0c5f8c9c0460d8a9b6351066fae0acbd4d3e776de8bb",
            "blockNumber": "0x429d3b",
            "data": "0x000000000000000000000000000000000000000000000000000000012a05f200",
            "logIndex": "0x56",
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                "0x00000000000000000000000000b46c2526e227482e2ebb8f4c69e4674d262e75",
                "0x00000000000000000000000054a2d42a40f51259dedd1978f6c118a0f0eff078"
            ],
            "transactionHash": "0xab059a62e22e230fe0f56d8555340a29b2e9532360368f810595453f6fdd213b",
            "transactionIndex": "0xac",
            "removed": false
        }
    ]
}