# eth\_getBlockByHash - Somnia

This method returns information about a block by its hash on the Somnia network. This is useful for retrieving specific block data when you have the block hash, particularly for verifying block content and transaction inclusion.

## Parameters

| Parameter        | Type    | Required | Description                                                                     |
| ---------------- | ------- | -------- | ------------------------------------------------------------------------------- |
| blockHash        | string  | Yes      | 32-byte block hash                                                              |
| fullTransactions | boolean | Yes      | If true, returns full transaction objects; if false, returns transaction hashes |

## Request Example

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

```bash
curl -X POST https://go.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "eth_getBlockByHash",
  "params": [
    "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
    false
  ]
}'
```

{% endcode %}
{% endtab %}

{% tab title="JavaScript (Axios)" %}
{% code title="axios.js" %}

```javascript
const axios = require('axios');

const url = 'https://go.getblock.io/<ACCESS-TOKEN>/';

const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'eth_getBlockByHash',
  params: ['0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd', false]
};

axios.post(url, payload, {
  headers: { 'Content-Type': 'application/json' }
})
.then(response => console.log(response.data))
.catch(error => console.error(error));
```

{% endcode %}
{% endtab %}

{% tab title="Python" %}
{% code title="example.py" %}

```python
import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "eth_getBlockByHash",
    "params": [
        "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
        False
    ]
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print(response.json())
```

{% endcode %}
{% endtab %}

{% tab title="Rust" %}
{% code title="main.rs" %}

```rust
use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    
    let payload = json!({
        "jsonrpc": "2.0",
        "id": "getblock.io",
        "method": "eth_getBlockByHash",
        "params": [
            "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
            false
        ]
    });

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);
    
    Ok(())
}
```

{% endcode %}
{% endtab %}
{% endtabs %}

## Response Example

{% code title="response.json" %}

```json
{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": {
    "number": "0x1a2b3c",
    "hash": "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
    "parentHash": "0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238",
    "timestamp": "0x65a1b2c3",
    "gasLimit": "0x1c9c380",
    "gasUsed": "0x5208",
    "miner": "0x742d35Cc6634C0532925a3b844Bc9e7595f8bB45",
    "transactions": []
  }
}
```

{% endcode %}

## Response Parameters

| Parameter    | Type   | Description         |
| ------------ | ------ | ------------------- |
| number       | string | Block number in hex |
| hash         | string | 32-byte block hash  |
| parentHash   | string | 32-byte parent hash |
| timestamp    | string | Unix timestamp      |
| gasLimit     | string | Block gas limit     |
| gasUsed      | string | Total gas used      |
| transactions | array  | Transaction data    |

## Use Cases

* Verify block content by hash
* Fetch block for transaction verification
* Build block explorers
* Verify transaction inclusion proofs
* Historical data analysis

## Error Handling

| Error Code  | Description                             |
| ----------- | --------------------------------------- |
| -32602      | Invalid params - malformed hash         |
| -32603      | Internal error - node processing issues |
| null result | Block not found                         |

## SDK Integration

{% tabs %}
{% tab title="Ethers.js" %}
{% code title="ethers.js" overflow="wrap" %}

```javascript
const { ethers } = require('ethers');

const provider = new ethers.JsonRpcProvider('https://go.getblock.io/<ACCESS-TOKEN>/');

const block = await provider.getBlock('0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd');
console.log(block);
```

{% endcode %}
{% endtab %}

{% tab title="Viem" %}
{% code title="viem.js" %}

```javascript
import { createPublicClient, http } from 'viem';
import { somnia } from 'viem/chains';

const client = createPublicClient({
  chain: somnia,
  transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const block = await client.getBlock({
  blockHash: '0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd'
});
console.log(block);
```

{% endcode %}
{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

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/somnia/eth_getblockbyhash-somnia.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.