Ethereum eth_newBlockFilter RPC method

Ethereum API method that creates a filter object to notify the arrival of a new block. To check if the state has changed, call eth_getFilterChanges.

Parameters:

• none

Returns:

• result — returns a filter ID to be used when calling eth_getFilterChanges.

Example:

• web3.js
• web3.py
• eth.rb
• cURL

// Web3.js does not support this feature. See the Web3.js subscriptions page.

from web3 import Web3
node_url = "CHAINSTACK_NODE_URL"
newBlockFilterId = web3.eth.filter("latest")
print(newBlockFilterId)

require "eth"
client = Eth::Client.create "CHAINSTACK_NODE_URL"
response = client.eth_new_block_filter
puts response["result"]

curl -X POST "CHAINSTACK_NODE_URL" \
  -H "Content-Type: application/json" \
  --data '{"method":"eth_newBlockFilter","params":[], "jsonrpc":"2.0", "id":1}'