klay_getFilterLogs

Returns an array of all logs matching filter with given id.

The execution of this API can be limited by two node configurations to manage resources of Klaytn node safely.

The number of maximum returned results in a single query (Default: 10,000).
The execution duration limit of a single query (Default: 10 seconds).

📘
Supported on Klaytn (mainnet) only.

Parameters

Request

Name	Type	Description
QUANTITY	string	The filter id

Result

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

For filters created with klay_newBlockFilter, the return are block hashes (32-byte DATA),
e.g., ["0x3454645634534..."].
For filters created with klay_newPendingTransactionFilter, the return are transaction
hashes (32-byte DATA), e.g., ["0x6345343454645..."].
For filters created with klay_newFilter, logs are objects with following parameters:

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.).

API Endpoint

The format of a Klaytn API endpoint is
https://open-platform.nodereal.io/{{apiKey}}/klaytn/

Here is an example:
https://open-platform.nodereal.io/4c0a1c23661a4e26bcbcwed461e34ea9/klaytn/

Example

// Request
curl https://open-platform.nodereal.io/{{apiKey}}/klaytn/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"klay_getFilterLogs","params":["0xd32fd16b6906e67f6e2b65dcf48fc272"],"id":1}' 

// Result
{
  "jsonrpc":"2.0",
  "id":1,
  "result":[{
      "address":"0x87ac99835e67168d4f9a40580f8f5c33550ba88b",
      "topics":["0xd596fdad182d29130ce218f4c1590c4b5ede105bee36690727baa6592bd2bfc8"],
      "data":"0x0000000000000000000000000000000000000000000000000000000000000064000000000000000000000000000000000000000000000000000000000000007b",
      "blockNumber":"0x54",
      "transactionHash":"0xcd4703cd62bd930d4652999bce8dcb75b7ade49d922fa42dc11e568c52a5fa6f",
      "transactionIndex":"0x0",
      "blockHash":"0x9a49f30f1d1876ff3913bd0aa58f328822e7a369cb13e0640b82234f26e781bb",
      "logIndex":"0x0",
      "removed":false
  }]
}