> For the complete documentation index, see [llms.txt](/llms.txt).

# eth_newFilter

Creates a filter object, based on filter options, to notify when the state changes (logs).

### Parameters

`Filter`(object)

filter

Filter properties▼

### Returns

hex encoded unsigned integer

Example request

```
await provider.request({
  method: 'eth_newFilter',
  params: [
    {
      fromBlock: '0x137d3c2',
      toBlock: '0x137d3c3',
      address: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
      topics: [],
    },
  ],
})

```

Example response

```
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": "0x01"
}

```