# Scroll eth_subscribe

> Creates new subscription on Scroll.

# `eth_subscribe`

<Description />

## Parameters

Specify one of the following subscription events:

- `newHeads`: Subscribing to this returns a notification each time a new header is appended to the chain, including chain reorganizations. In a chain reorganization, the subscription emits all new headers for the new chain. Therefore the subscription can emit multiple headers at the same height.
- `logs`: Returns logs that are included in new imported blocks and match the given filter criteria. In case of a chain reorganization, previously sent logs that are on the old chain are resent with the removed property set to `true`. Logs from transactions that ended up in the new chain are emitted. Therefore a subscription can emit logs for the same transaction multiple times. This parameter has the following fields:
  - `address`: (_optional_) Either an address or an array of addresses. Only logs that are created from these addresses are returned.
  - `topics`: (_optional_) Only logs that match these specified topics are returned.
    :::tip Infura Recommendation
    We strongly recommend specifying a filter (`address` or `topics` or both) when subscribing to the `logs` event.
    :::

## Returns

<Returns />

## Example

<Example />

### Request

<Tabs>
  <TabItem value="newHeads">

```bash
wscat -c wss://scroll-mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["newHeads"]}'
```

  </TabItem>
  <TabItem value="logs">

```bash
wscat -c wss://scroll-mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc": "2.0", "id": 1, "method": "eth_subscribe", "params": ["logs", {"address": "0x8320fe7702b96808f7bbc0d4a888ed1468216cfd", "topics":["0xd78a0cb8bb633d06981248b816e7bd33c2a35a6089241d099fa519e361cab902"]}]}'
```

  </TabItem>
 </Tabs>

### Response

<Response />