Polling method for a filter, which returns an array of logs which occurred since last poll.
QUANTITY
- the filter id.params: [
"0x16" // 22
]
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 the 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.)// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getFilterChanges","params":["0x16"],"id":73}'
// Result
{
"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"]
},{
...
}]
}