eth_newFilter

Creates a filter object, based on filter options, to notify when the state changes (logs). To check if the state has changed, call eth_getFilterChanges.

Parameters
Params - a string array containing (required):
Object - The filter options:
fromBlock(hex string|string, optional). QUANTITY|TAG - Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.
toBlock(hex string|string, optional). QUANTITY|TAG - Integer block number, or "latest" for the last mined block or "pending", "earliest" for not yet mined transactions.
address(hex string|array, optional). DATA|Array, 20 Bytes - Contract address or a list of addresses from which logs should originate.
topics(array, optional). Array of DATA - Array of 32 Bytes DATA topics. Topics are order-dependent. Each topic can also be an array of DATA with “or” options.
Returns
QUANTITY(hex string) - A filter id.
Example
Request
curl
TypeScript
curl https://blockvision.org/v1/<your api key> \
-X POST \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "method": "eth_newFilter",
  "params": [
    {
      "fromBlock": "0x1",
      "toBlock": "0x2",
      "address": "0x8888f1f195afa192cfee860698584c030f4c9db1",
      "topics": [
        "0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b",
        null,
        [
          "0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b",
          "0x0000000000000000000000000aff3454fce5edbc8cca8697c15331677e6ebccc"
        ]
      ]
    }
  ],
  "id": 0
}'
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.getNewFilter([
    {
        fromBlock: '0x1',
        toBlock: '0x2',
        address: '0x8888f1f195afa192cfee860698584c030f4c9db1',
        topics: [
            '0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b',
            null,
            [
                '0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b',
                '0x0000000000000000000000000aff3454fce5edbc8cca8697c15331677e6ebccc'
            ]
        ]
    }
]).then(console.log)
Response
{
  "jsonrpc": "2.0",
  "id": 0,
  "result": "0xdcc9a819f80efa9e1d215a9d41b2d22e"
}

web3_sha3

eth_uninstallFilter

Last modified 1mo ago