# eth\_getUncleCountByBlockHash - Rootstock

#### Parameters

`DATA` - string

hash of the block.

#### Request

```java
wscat -c wss://go.getblock.io/<ACCESS-TOKEN>/ 
# wait for connection and send the request body 
{"jsonrpc": "2.0",
"method": "eth_getUncleCountByBlockHash",
"params": ["0xf2a2b854721d4372474fc76cc13445a73369c0c334f4935c88bde3c310f28c9a"],
"id": "getblock.io"}
```

#### Response

```java
{
    "id": "getblock.io",
    "jsonrpc": "2.0",
    "result": "0x0"
}
```