# eth\_getTransactionByBlockHashAndIndex - BSC

This method returns information about a transaction by block hash and transaction index position on the BNB Smart Chain.

## Parameters

| Parameter | Type   | Required | Description             |
| --------- | ------ | -------- | ----------------------- |
| blockHash | string | Yes      | 32-byte block hash      |
| index     | string | Yes      | Transaction index (hex) |

## Request Example

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

```bash
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockHashAndIndex",
    "params": [
        "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
        "0x0"
    ],
    "id": "getblock.io"
}'
```

{% endcode %}
{% endtab %}

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

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

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

const payload = {
    jsonrpc: '2.0',
    method: 'eth_getTransactionByBlockHashAndIndex',
    params: [
        '0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd',
        '0x0'
    ],
    id: 'getblock.io'
};

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="request.py" %}

```python
import requests

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

payload = {
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockHashAndIndex",
    "params": [
        "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
        "0x0"
    ],
    "id": "getblock.io"
}

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",
        "method": "eth_getTransactionByBlockHashAndIndex",
        "params": [
            "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
            "0x0"
        ],
        "id": "getblock.io"
    });

    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" overflow="wrap" %}

```json
{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "blockHash": "0x5cd602c9365e1f343cfeb50d7ab71f8b38efd397fa4b41c42fb54772b5ec5416",
        "blockNumber": "0x4a883f0",
        "from": "0x9fb20230831d9051c67cc2527d7bf0ea51e5412e",
        "gas": "0xbbb0",
        "gasPrice": "0x0",
        "hash": "0xcaf9dc7f41315007d9a3644196aacc2b033efabc7ca4dd6dc3b8f2597247df35",
        "input": "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",
        "nonce": "0x0",
        "to": "0x4848489f0b2bedd788c696e2d79b6b69d7484848",
        "transactionIndex": "0x0",
        "value": "0x0",
        "type": "0x0",
        "chainId": "0x38",
        "v": "0x93",
        "r": "0x30bdd015c19010f96460dcd675608bc4e48514d665cbe0cc2ea77979106e8bdf",
        "s": "0x6aef883f78b92bdb34ef0881bdf38573f75e56a77b4f10ae69b2fbc47bbf2afb"
    }
}
```

{% endcode %}

## Response Parameters Definition

| Field            | Type           | Description                                          |
| ---------------- | -------------- | ---------------------------------------------------- |
| hash             | string         | Hash of the transaction                              |
| blockHash        | string         | Hash of the block this transaction belongs to        |
| blockNumber      | string (hex)   | Block number                                         |
| from             | string         | Sender address                                       |
| to               | string or null | Receiver address or null for contract creation       |
| value            | string (hex)   | Value transferred in wei                             |
| nonce            | string (hex)   | Number of transactions previously sent by the sender |
| gas              | string (hex)   | Gas limit                                            |
| gasPrice         | string (hex)   | Gas price in wei                                     |
| input            | string (hex)   | Transaction calldata                                 |
| transactionIndex | string (hex)   | Index of the transaction inside the block            |
| v, r, s          | string         | ECDSA signature values                               |

## Use Cases

* Iterate through block transactions
* Build block explorers
* Analyze transaction ordering

## Error Handling

| Error Code  | Description           |
| ----------- | --------------------- |
| -32602      | Invalid params        |
| null result | Transaction not found |

## SDK Integration

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

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

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

const block = await provider.getBlock('0x4e3a375...', true);
const tx = block.prefetchedTransactions[0];
console.log(tx);
```

{% endtab %}

{% tab title="Viem" %}

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

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

const tx = await client.getTransaction({
    blockHash: '0x4e3a375...',
    index: 0
});
console.log(tx);
```

{% 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/bnb-smart-chain-bsc/eth_gettransactionbyblockhashandindex-bsc.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.