eth_getFilterChanges
Polling method for a filter, which returns an array of logs which occurred since last poll.
Params
- a string array containing (required):QUANTITY(hex string, required)
- The filter id.
Array(array of objects)
- 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(hex string)
, 32 Bytes), e.g.["0x3454645634534..."]
. - For filters created with
eth_newPendingTransactionFilter
the return are transaction hashes (DATA(hex string)
, 32 Bytes), e.g.["0x6345343454645..."]
. - For filters created with
eth_newFilter
logs are objects with following params:removed(boolean)
:TAG
-true
when the log was removed, due to a chain reorganization.false
if its a valid log.logIndex(integer number)
:QUANTITY
- integer of the log index position in the block.null
when its pending log.transactionIndex(integer number)
:QUANTITY
- integer of the transactions index position log was created from.null
when its pending log.transactionHash(hex string)
:DATA
, 32 Bytes - hash of the transactions this log was created from.null
when its pending log.blockHash(hex string)
:DATA
, 32 Bytes - hash of the block where this log was in.null
when its pending.null
when its pending log.blockNumber(integer number)
:QUANTITY
- the block number where this log was in.null
when its pending.null
when its pending log.address(hex string)
:DATA
, 20 Bytes - address from which this log originated.data(hex string)
:DATA
- contains one or more 32 Bytes non-indexed arguments of the log.topics(array of hex string)
:Array of DATA
- Array of 0 to 4 32 BytesDATA
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 theanonymous
specifier.
curl
TypeScript
curl https://blockvision.org/v1/<your api key> \
-X POST \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "eth_getFilterChanges",
"params": [
"0xfe704947a3cd3ca12541458a4321c869"
],
"id": 73
}'
import { BlockVisionProvider, BvNetwork } from 'blockvision.js'
// Optional parameters, but default to eth-mainnet and default api-key.
const bv = new BlockVisionProvider(BvNetwork.OPT_MAINNET)
// Access BlockVision Enhanced API requests
bv.getFilterChanges('0xfe704947a3cd3ca12541458a4321c869').then(console.log)
{
"jsonrpc": "2.0",
"id": 73,
"result": [{
"address": "0xb5a5f22694352c15b00323844ad545abb2b11028",
"blockHash": "0x99e8663c7b6d8bba3c7627a17d774238eae3e793dee30008debb2699666657de",
"blockNumber": "0x5d12ab",
"data": "0x0000000000000000000000000000000000000000000000a247d7a2955b61d000",
"logIndex": "0x0",
"removed": false,
"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x000000000000000000000000bdc0afe57b8e9468aa95396da2ab2063e595f37e", "0x0000000000000000000000007503e090dc2b64a88f034fb45e247cbd82b8741e"],
"transactionHash": "0xa74c2432c9cf7dbb875a385a2411fd8f13ca9ec12216864b1a1ead3c99de99cd",
"transactionIndex": "0x3"
}, {
"address": "0xe38165c9f6deb144afc9c32c206b024817e1496d",
"blockHash": "0x99e8663c7b6d8bba3c7627a17d774238eae3e793dee30008debb2699666657de",
"blockNumber": "0x5d12ab",
"data": "0x0000000000000000000000000000000000000000000000000000000025c6b720",
"logIndex": "0x3",
"removed": false,
"topics": ["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef", "0x00000000000000000000000080e73e47173b2d00b531bf83bc39e710157125c3", "0x0000000000000000000000008f6cc93795969e5bbbf07c66dfee7d41ad24f1ef"],
"transactionHash": "0x9e8f1cb1facb9a11a1cf947634053a0b2d557399f926b12127aa10497a2f0153",
"transactionIndex": "0x5"
}
}
Last modified 1mo ago