Please note that this RPC method have a block range limit of 10,000 blocks to ensure reliability, so it's best to break down queries into smaller chunks for faster responses and better error handling. For more information about the block range limit and how to avoid it, refer to this FAQ To use the eth_newFilter method on the Avalanche C-Chain, ensure that the end of your URL includes ext/bc/C/rpc.

Parameters

object

array

The transaction response object which contains the following filter information:

fromBlock

string

The block number as a string in hexadecimal format or tags. The supported tag values include earliest for the earliest/genesis block, latest for the latest mined block, pending for the pending state/transactions, safe for the most recent secure block, and finalized for the most recent secure block accepted by more than 2/3 of validators. safe and finalized are only supported on Ethereum, Gnosis, Arbitrum, Arbitrum Nova, and Avalanche C-chain

toBlock

string

The block number as a string in hexadecimal format or tags. The supported tag values include earliest for the earliest/genesis block, latest for the latest mined block, pending for the pending state/transactions, safe for the most recent secure block, and finalized for the most recent secure block accepted by more than 2/3 of validators. safe and finalized are only supported on Ethereum, Gnosis, Arbitrum, Arbitrum Nova, and Avalanche C-chain

address

string

The contract address or a list of addresses from which logs should originate.

topics

string

An array of DATA topics and also, the topics are order-dependent. Visit here to learn more about topics

Returns

result

string

It returns a filter ID to be used when calling eth_getFilterChanges

Request

1
curl https://docs-demo.avalanche-mainnet.quiknode.pro \
2
  -X POST \
3
  -H "Content-Type: application/json" \
4
  --data '{
5
  "jsonrpc": "2.0",
6
  "method": "eth_newFilter",
7
  "params": [
8
    {
9
      "fromBlock": "0xe20360",
10
      "toBlock": "0xe20411",
11
      "address": "0x6b175474e89094c44da98b954eedeac495271d0f",
12
      "topics": []
13
    }
14
  ],
15
  "id": 1
16
}'

1
curl https://docs-demo.avalanche-mainnet.quiknode.pro \
2
  -X POST \
3
  -H "Content-Type: application/json" \
4
  --data '{
5
  "jsonrpc": "2.0",
6
  "method": "eth_newFilter",
7
  "params": [
8
    {
9
      "fromBlock": "0xe20360",
10
      "toBlock": "0xe20411",
11
      "address": "0x6b175474e89094c44da98b954eedeac495271d0f",
12
      "topics": []
13
    }
14
  ],
15
  "id": 1
16
}'

1
import { Core } from '@quicknode/sdk'
2

3
const core = new Core({
4
  endpointUrl: "https://docs-demo.avalanche-mainnet.quiknode.pro",
5
})
6

7
core.client.createEventFilter()
8

1
import { Core } from '@quicknode/sdk'
2

3
const core = new Core({
4
  endpointUrl: "https://docs-demo.avalanche-mainnet.quiknode.pro",
5
})
6

7
core.client.createEventFilter()
8

1
import { ethers } from "ethers";
2

3
const filter = {
4
  fromBlock: "0xe20360",
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  toBlock: "0xe20411",
6
  address: "0x6B175474E89094C44Da98b954EedeAC495271d0F",
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};
8

9
(async () => {
10
  const provider = new ethers.JsonRpcProvider(
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    "https://docs-demo.avalanche-mainnet.quiknode.pro"
12
  );
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  const filterId = await provider.send("eth_newFilter", [filter]);
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  console.log(filterId);
15
})();
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1
import { ethers } from "ethers";
2

3
const filter = {
4
  fromBlock: "0xe20360",
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  toBlock: "0xe20411",
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  address: "0x6B175474E89094C44Da98b954EedeAC495271d0F",
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};
8

9
(async () => {
10
  const provider = new ethers.JsonRpcProvider(
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    "https://docs-demo.avalanche-mainnet.quiknode.pro"
12
  );
13
  const filterId = await provider.send("eth_newFilter", [filter]);
14
  console.log(filterId);
15
})();
16

1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.avalanche-mainnet.quiknode.pro'))
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newFilterId = w3.eth.filter({
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  'fromBlock': "0xe20360",
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  'toBlock': "0xe20411",
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  'address': '0x6B175474E89094C44Da98b954EedeAC495271d0F'
7
})
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print(newFilterId)
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1
from web3 import Web3, HTTPProvider
2
w3 = Web3(HTTPProvider('https://docs-demo.avalanche-mainnet.quiknode.pro'))
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newFilterId = w3.eth.filter({
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  'fromBlock': "0xe20360",
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  'toBlock': "0xe20411",
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  'address': '0x6B175474E89094C44Da98b954EedeAC495271d0F'
7
})
8
print(newFilterId)
9

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