# getUncleByBlockNumberAndIndex

### REQUEST

```
POST https://mainnet-slice-rpc.com
```

#### HEADERS

```
Content-Type: application/json
```

#### REQUEST PARAMS

* `BLOCK PARAMETER` *\[required]* - an integer block number, or the string "latest", "earliest" or "pending", see the [default block parameter](https://github.com/ethereum/wiki/wiki/JSON-RPC#the-default-block-parameter)
* `UNCLE INDEX POSITION` *\[required]* - a hex of the integer indicating the uncle's index position.

#### EXAMPLE

```
## JSON-RPC over HTTPS POST
curl https://mainnet-slice-rpc.com \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params": ["0x29c","0x0"],"id":1}'

## JSON-RPC over WSS
wscat -c ws://mainnet-slice-rpc.com
>{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params": ["0x29c","0x0"],"id":1}
```

### RESPONSE

#### RESULT FIELDS

* `BLOCK` - A block object, or null when no block was found
  * `number`: the block number. null when its pending block.
  * `hash`: 32 Bytes - hash of the block. null when its pending block.
  * `parentHash`: 32 Bytes - hash of the parent block.
  * `nonce`: 8 Bytes - hash of the generated proof-of-work. null when its pending block.
  * `sha3Uncles`: 32 Bytes - SHA3 of the uncles data in the block.
  * `logsBloom`: 256 Bytes - the bloom filter for the logs of the block. null when its pending block.
  * `transactionsRoot`: 32 Bytes - the root of the transaction trie of the block.
  * `stateRoot`: 32 Bytes - the root of the final state trie of the block.
  * `receiptsRoot`: 32 Bytes - the root of the receipts trie of the block.
  * `miner`: 20 Bytes - the address of the beneficiary to whom the mining rewards were given.
  * `difficulty`: integer of the difficulty for this block.
  * `totalDifficulty`: integer of the total difficulty of the chain until this block.
  * `extraData`: the "extra data" field of this block.
  * `size`: integer the size of this block in bytes.
  * `gasLimit`: the maximum gas allowed in this block.
  * `gasUsed`: the total used gas by all transactions in this block.
  * `timestamp`: the unix timestamp for when the block was collated.
  * `uncles`: an Array of uncle hashes.

Note: An uncle doesn't contain individual transactions

#### BODY

```
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "difficulty": "0x57f117f5c",
        "extraData": "0x476574682f76312e302e302f77696e646f77732f676f312e342e32",
        "gasLimit": "0x1388",
        "gasUsed": "0x0",
        "hash": "0x932bdf904546a2287a2c9b2ede37925f698a7657484b172d4e5184f80bdd464d",
        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
        "miner": "0x5bf5e9cf9b456d6591073513de7fd69a9bef04bc",
        "mixHash": "0x4500aa4ee2b3044a155252e35273770edeb2ab6f8cb19ca8e732771484462169",
        "nonce": "0x24732773618192ac",
        "number": "0x299",
        "parentHash": "0xa779859b1ee558258b7008bbabff272280136c5dd3eb3ea3bfa8f6ae03bf91e5",
        "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
        "size": "0x21d",
        "stateRoot": "0x2604fbf5183f5360da249b51f1b9f1e0f315d2ff3ffa1a4143ff221ad9ca1fec",
        "timestamp": "0x55ba4827",
        "totalDifficulty": null,
        "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
        "uncles": []
    }
}
```
