# eth\_getBlockByNumber - Arbitrum

This method retrieves a full block by its block number. Supports returning either full transaction objects or only transaction hashes.

#### Parameters

| Parameter          | Type    | Required | Description                                                                                                   |
| ------------------ | ------- | -------- | ------------------------------------------------------------------------------------------------------------- |
| block\_number      | string  | yes      | Block number as a hex string (for example "0x10fb78") or special tags: `"latest"`, `"earliest"`, `"pending"`. |
| full\_transactions | boolean | yes      | If **true**, returns full transaction objects. If **false**, returns only transaction hashes.                 |

#### Request

{% tabs %}
{% tab title="cURL" %}

```bash
curl --location 'https://go.getblock.us/<ACCESS_TOKEN>' \
--header 'Content-Type: application/json' \
--data '{
   "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
}'
```

{% endtab %}

{% tab title="Axios" %}

```javascript
import axios from 'axios'
let data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
};

let config = {
  method: "post",
  maxBodyLength: Infinity,
  url: "https://go.getblock.us/<ACCESS_TOKEN>",
  headers: {
    "Content-Type": "application/json",
  },
  data: data,
};

axios
  .request(config)
  .then((response) => {
    console.log(JSON.stringify(response.data));
  })
  .catch((error) => {
    console.log(error);
  });

```

{% endtab %}

{% tab title="Request" %}

```python
import requests
import json

url = "https://go.getblock.us/<ACESS_TOKEN>"

payload = json.dumps({
   "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
})
headers = {
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

```

{% endtab %}

{% tab title="Rust" %}

```rs
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::builder()
        .build()?;

    let mut headers = reqwest::header::HeaderMap::new();
    headers.insert("Content-Type", "application/json".parse()?);

    let data = r#"{
   "jsonrpc": "2.0",
    "method": "eth_getBlockByNumber",
    "params": [
        "latest",
        false
    ],
    "id": "getblock.io"
}"#;

    let json: serde_json::Value = serde_json::from_str(&data)?;

    let request = client.request(reqwest::Method::POST, "https://go.getblock.us/<ACCESS_TOKEN>")
        .headers(headers)
        .json(&json);

    let response = request.send().await?;
    let body = response.text().await?;

    println!("{}", body);

    Ok(())
}
```

{% endtab %}
{% endtabs %}

#### Response

```java
{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "baseFeePerGas": "0x7cf30f8",
        "difficulty": "0x1",
        "extraData": "0x539464419cc7e1235fba3837a56b348ecb8ae3a3ed2f1c8839012038bbb59e32",
        "gasLimit": "0x4000000000000",
        "gasUsed": "0x1560d7",
        "hash": "0x1d77c0b85c1d0a75c19c94dc05868c936dc6d6b537c1846613e97110c90b3f48",
        "l1BlockNumber": "0x16dd9f1",
        "logsBloom": "0x000100c2000c0008800000044000200000000000000000180000010401000800000408020108000800800000000000000100400108082210006000000028000000000001000200080014040800002004000000040280000008004020000020412000000c0002040000001824000000000000040000000000004000100008000a0020800080004010000001000000000800000000000001000080000000000000020000200001000000000020800000000000080000000000000000080000001000402002000000200000000000010008040082001000882042200200008000080210040000200000000020000000200000000000080040000000000000400400",
        "miner": "0xa4b000000000000000000073657175656e636572",
        "mixHash": "0x0000000000025f6000000000016dd9f100000000000000280000000000000000",
        "nonce": "0x0000000000221739",
        "number": "0x185eef3d",
        "parentHash": "0x9c39e9f3fbc4b716cc974f5bec6766c95d23caf0dd89c97da33bc39656643437",
        "receiptsRoot": "0xb51b31ab3fccbb7423ae394c8d5e2039b55476d9df233e8031bf1c7d5620e489",
        "sendCount": "0x25f60",
        "sendRoot": "0x539464419cc7e1235fba3837a56b348ecb8ae3a3ed2f1c8839012038bbb59e32",
        "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
        "size": "0xed9",
        "stateRoot": "0x764448b4dcde129e0630c8f010e8a7c6ebcc446ec4cb2c2bea87d8f3ff8d86d8",
        "timestamp": "0x69384f78",
        "transactions": [
            "0xd31a43fdc91c3aaa6b00537d8788b06b28833ea14d237488ac35d5993ed8634c",
            "0xdf1df3a844340e0ae82485f78754818d8d628ac7236b6bcdbe3946c219301a45",
            "0x4c02aa4e537ff54dbfda1b3ef528bd611cfe88225d071fda4fa57a12801a2c88",
            "0x5c4f37fdf581342bb1e0eed9522feb69e988b5270945ce6128d55914b0a76c8f",
            "0x795fdc0ab98a9ec4f651779dfc055677f7a35596dda5292ab966b4c35c935231",
            "0x93e9d4fd77c2a9f34f80b328cbbe0613d943d376277a3758c0023c9e349becaf",
            "0xe05ee8bbc3a0db68529271b76ddcca2e5ac3c52263d57268293c09606d1bcaa6",
            "0x5f9fe747df5850d935f769be1a3e91102cd5ab73750b14b82f7e0afbba7cb30f",
            "0x7ee97b9dfa06eeec0bfac8bdcfb320888092a735174b5b7b15f0d066b6b85ecf",
            "0x8357a5f4721cec2e7d27caa0c0ae909e4db26f0e001888651f6213430e3489fe",
            "0xbc740ac9a94989b232c9445e475eb1cc94c3ed858a869ce0c43029cb9ed9d836",
            "0x89203f417d97ae57eaa1f73f1e08a11a9ffd73936744233555152d37d38cdb6e"
        ],
        "transactionsRoot": "0xacd0886f4df73a6d36dcbe36a854a162d25d2e2b81d6362b174d01582aeae562",
        "uncles": []
    }
}
```

#### Reponse Parameter Definition

| Field            | Type         | Description                           |
| ---------------- | ------------ | ------------------------------------- |
| number           | string (hex) | Block number                          |
| hash             | string       | Block hash                            |
| parentHash       | string       | Previous block hash                   |
| nonce            | string       | Always 0 on Arbitrum                  |
| sha3Uncles       | string       | Keccak hash of uncles                 |
| logsBloom        | string       | Bloom filter for logs                 |
| transactionsRoot | string       | Root of transactions trie             |
| stateRoot        | string       | Root of state trie                    |
| miner            | string       | Address that proposed the block       |
| difficulty       | string       | Always zero on Arbitrum               |
| totalDifficulty  | string       | Always zero                           |
| size             | string       | Block size in bytes                   |
| gasLimit         | string       | Block gas limit                       |
| gasUsed          | string       | Total gas consumed                    |
| timestamp        | string       | Unix timestamp                        |
| transactions     | array        | List of transaction hashes or objects |
| uncles           | array        | Always empty                          |

#### Use case

The `eth_getBlockByNumber` is used to:

* Real-time monitoring of blockchain activity
* Fetching the latest block information for dashboards
* Analyzing block-level gas usage and activity patterns
* Validating the inclusion of transactions within a specific block
* Supporting DeFi applications that depend on accurate state timing
* Powering NFT explorers and block visualizers

#### Error handling

| Status Code | Error Message    | Cause                                                                               |
| ----------- | ---------------- | ----------------------------------------------------------------------------------- |
| 403         | Forbidden        | Missing or invalid ACCESS\_TOKEN.                                                   |
| -32602      | Invalid argument | The block hash isn't accurate or incomplete or full\_transaction boolean is missing |

#### Integration with Web3

The `eth_getBlockByNumber` can help developers:

* Stream blocks in real time for analytics
* Power live dashboards with block updates
* Confirm block finality before executing contracts
* Inspect transaction activity between specific blocks
* Support trustless frontends that monitor chain state

{% tabs %}
{% tab title="Ethers.js" %}

```javascript
import { ethers } from "ethers";
const RPC_URL = "https://go.getblock.us/<ACCESS_TOKEN>";
const provider = new ethers.JsonRpcProvider(RPC_URL);
async function Call() {
  try {
     const result = await provider.send("eth_getBlockByNumber", ["latest", false],);    console.log("The result:", result);
    return result;
  } catch (error) {
    console.error("The error:", error);
    throw error;
  }
}
```

{% endtab %}

{% tab title="Viem" %}

```jsx
import { createPublicClient, http } from 'viem';
import { arbitrum } from 'viem/chains';

// Create Viem client with GetBlock
const client = createPublicClient({
  chain: arbitrum,
  transport: http('https://go.getblock.us/<ACCESS_TOKEN>'),
});

// Using the method through Viem
async function Call() {
    try {
        // Method-specific Viem implementation
        const result = await client.request({
            method: 'eth_getBlockByNumber',
            params: ["latest", false],
        });
        console.log('Result:', result);
        return result;
    } catch (error) {
        console.error('Viem Error:', error);
        throw error;
    }
}

```

{% endtab %}
{% endtabs %}


---

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If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.getblock.io/api-reference/arbitrum-arb/arbitrum_eth_getblockbynumber.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.