eth_newBlockFilter

Creates a filter on Astar to notify when a new block arrives.

Parameters

This method accepts no parameters.

Request

{
  "jsonrpc": "2.0",
  "method": "eth_newBlockFilter",
  "params": [],
  "id": 1
}

Returns

Type	Description
QUANTITY	Filter ID

Code Examples

cURL

curl -X POST https://api-astar.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_newBlockFilter",
    "params": [],
    "id": 1
  }'

JavaScript

import { JsonRpcProvider } from 'ethers';

const provider = new JsonRpcProvider('https://api-astar.n.dwellir.com/YOUR_API_KEY');

const filterId = await provider.send('eth_newBlockFilter', []);

// Poll for new blocks
const newBlocks = await provider.send('eth_getFilterChanges', [filterId]);
console.log('New block hashes:', newBlocks);

Related Methods

• eth_getFilterChanges - Poll filter
• eth_blockNumber - Get current block