eth_getTransactionByBlockHashAndIndex - BSC

Example code for the eth_getTransactionByBlockHashAndIndex JSON RPC method. Сomplete guide on how to use eth_getTransactionByBlockHashAndIndex JSON RPC in GetBlock Web3 documentation.

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

cURL

curl

curl --location --request POST 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionByBlockHashAndIndex",
    "params": [
        "0x4e3a3754410177e6937ef1f84bba68ea139e8d1a2258c5f85db9f1cd715a1bdd",
        "0x0"
    ],
    "id": "getblock.io"
}'

JavaScript (Axios)

request.js

const axios = require('axios');

const url = 'https://shared.eu-central-1.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));

Python

request.py

import requests

url = "https://shared.eu-central-1.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())

Rust

main.rs

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://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

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

Response Example

response.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"
    }
}

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

Ethers.js

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

const provider = new ethers.JsonRpcProvider('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/');

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

Viem

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

const client = createPublicClient({
    chain: bsc,
    transport: http('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/')
});

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