← Documentation
/ eth_newBlockFilter
Eth New Block Filter
Creates a filter in the node, to notify when a new block arrives. To check if the state has changed, call eth_getFilterChanges.
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Creates a filter in the node, to notify when a new block arrives. To check if the state has changed, call eth_getFilterChanges.
The API credit value for this method is 2 . To learn more about API credits and each method's value, visit the API Credits page.
Parameters:
Returns:
Code Examples:
curl http://sample-endpoint-name.network.quiknode.pro/token-goes-here/ \
-X POST \
-H "Content-Type: application/json" \
--data '{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":67}'
var myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");
var raw = JSON.stringify({
"jsonrpc": "2.0",
"method": "eth_newBlockFilter",
"params": [],
"id": 67
});
var requestOptions = {
method: 'POST',
headers: myHeaders,
body: raw,
redirect: 'follow'
};
fetch("http://sample-endpoint-name.network.quiknode.pro/token-goes-here/", requestOptions)
.then(response => response.text())
.then(result => console.log(result))
.catch(error => console.log('error', error));
require 'ethereum.rb'
client = Ethereum::HttpClient.new('http://sample-endpoint-name.network.quiknode.pro/token-goes-here/')
response = client.eth_new_block_filter
puts response["result"]
const ethers = require("ethers");
(async () => {
const provider = new ethers.providers.JsonRpcProvider("http://sample-endpoint-name.network.quiknode.pro/token-goes-here/");
const filterId = await provider.send("eth_newBlockFilter");
console.log(filterId);
const logs = await provider.send("eth_getFilterChanges", [filterId]);
console.log(logs);
})();
from web3 import Web3, HTTPProvider
w3 = Web3(HTTPProvider('http://sample-endpoint-name.network.quiknode.pro/token-goes-here/'))
newBlockFilterId = w3.eth.filter('latest')
print(newBlockFilterId)
require "uri"
require "json"
require "net/http"
url = URI("http://sample-endpoint-name.network.quiknode.pro/token-goes-here/")
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({
"jsonrpc": "2.0",
"method": "eth_newBlockFilter",
"params": [],
"id": 67
})
response = https.request(request)
puts response.read_body
import requests
import json
url = "http://sample-endpoint-name.network.quiknode.pro/token-goes-here/"
payload = json.dumps({
"jsonrpc": "2.0",
"method": "eth_newBlockFilter",
"params": [],
"id": 67
})
headers = {
'Content-Type': 'application/json'
}
response = requests.request("POST", url, headers=headers, data=payload)
print(response.text)