eth_getFilterChanges RPC Method

To use the eth_getFilterChanges method on the C-Chain, ensure that the end of your URL includes ext/bc/C/rpc.

Parameters

filter ID

string

REQUIRED

Returns

array

eth_newBlockFilter

object

blockHash

string

eth_newPendingTransactionFilter

object

transactionHash

string

eth_newFilter

object

address

string

topics

array

data

string

blockNumber

string

transactionHash

string

transactionIndex

string

blockHash

string

logIndex

string

removed

boolean

Request

curl https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"method":"eth_getFilterChanges","params":["YOUR_FILTER_ID"],"id":1,"jsonrpc":"2.0"}'

require 'eth'

client = Eth::Client.create 'https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc'
payload = {
    "jsonrpc": "2.0",
    "method": "eth_getFilterChanges",
    "params": ["YOUR_FILTER_ID"],
    "id": "1"
}

response = client.send(payload.to_json)
puts response

import { ethers } from "ethers";

const filter = {
  fromBlock: "0x1",
  toBlock: "0x2",
  address: "0x8888f1f195afa192cfee860698584c030f4c9db1",
  topics: [
    "0x000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b",
  ],
};

(async () => {
  const provider = new ethers.JsonRpcProvider(
    "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc"
  );
  const filterId = await provider.send("eth_newFilter", [filter]);
  console.log(filterId);
  const logs = await provider.send("eth_getFilterChanges", [filterId]);
  console.log(logs);
})();

from web3 import Web3, HTTPProvider
w3 = Web3(HTTPProvider('https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc'))
put_filter = w3.eth.filter({'fromBlock': 1000000, 'toBlock': 1000100, 'address': '0x6C8f2A135f6ed072DE4503Bd7C4999a1a17F824B'})
print(w3.eth.get_filter_changes(put_filter.filter_id))

const myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");

const raw = JSON.stringify({
  "method": "eth_getFilterChanges",
  "params": [
    "YOUR_FILTER_ID"
  ],
  "id": 1,
  "jsonrpc": "2.0"
});

const requestOptions = {
  method: "POST",
  headers: myHeaders,
  body: raw,
  redirect: "follow"
};

fetch("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc", requestOptions)
  .then((response) => response.text())
  .then((result) => console.log(result))
  .catch((error) => console.error(error));

import requests
import json

url = "https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc"

payload = json.dumps({
  "method": "eth_getFilterChanges",
  "params": [
    "YOUR_FILTER_ID"
  ],
  "id": 1,
  "jsonrpc": "2.0"
})
headers = {
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

require "uri"
require "json"
require "net/http"

url = URI("https://docs-demo.flare-mainnet.quiknode.pro/ext/bc/C/rpc")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "method": "eth_getFilterChanges",
  "params": [
    "YOUR_FILTER_ID"
  ],
  "id": 1,
  "jsonrpc": "2.0"
})

response = https.request(request)
puts response.read_body

import { Core } from '@quicknode/sdk'

const core = new Core({
  endpointUrl: "https://docs-demo.flare-mainnet.quiknode.pro/",
})

/**
 * Can listen for filter changes on filters created with the following functions
 * createBlockFilter
 * createContractEventFilter
 * createEventFilter
 * createPendingTransactionFilter
 */
async(() => {
  const filter = await core.client.createBlockFilter()
  const hashes = await core.client.getFilterChanges({ filter })
})()

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eth_getFilterChanges RPC Method

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Parameters

Returns