eth_getBlockByHash - opBNB

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

This method returns information about a block by its hash. Like eth_getBlockByNumber, the second argument controls whether transactions are returned as full objects or only hashes.

Parameters

Parameter

Type

Required

Description

blockHash

string

Yes

32-byte hash of the block

fullTransactions

boolean

Yes

If true, returns full transaction objects; if false, only hashes

Request Example

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByHash",
    "params": [
        "0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b",
        false
    ],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getBlockByHash",
    "params": [
        "0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b",
        false
    ],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data, null, 2)))
    .catch(error => console.log(error));

import requests
import json

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

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_getBlockByHash",
    "params": [
        "0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b",
        false
    ],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

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_getBlockByHash",
        "params": [
                "0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b",
                false
        ],
        "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(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "number": "0x2d4e8a3",
        "hash": "0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b",
        "parentHash": "0x3a2e9d4b1c5f8a7e6d4b2c1f9a3e5d8b7c2f4a1d6e9b3c5f8a2d4e7b1c9f3a6e",
        "timestamp": "0x67891f24",
        "gasLimit": "0x5f5e100",
        "gasUsed": "0x2faf080",
        "transactions": [
            "0x88df016429689c079f3b2f6ad39fa052532c56795b733da78a91ebe6a713944b"
        ]
    }
}

Response Parameters

Field

Type

Description

result

object | null

Block object (same schema as eth_getBlockByNumber), or null if not found

result.number

string

Block number (hex)

result.hash

string

Block hash (32 bytes hex)

result.timestamp

string

Unix timestamp (hex)

result.transactions

array

Array of transaction hashes or full objects

Use Cases

Resolving a block from a known hash (e.g. from a transaction receipt)
Reorg detection by comparing block hashes at the same height
Verifying block identity for trust-minimised applications

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid <ACCESS-TOKEN>

-32602

Invalid params

Request parameters are missing or malformed

-32601

Method not found

The method is not supported by this node

429

Too Many Requests

Rate limit exceeded for your plan

SDK Integration

import { ethers } from 'ethers';

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

// Most methods are exposed directly on the provider.
// For raw access, use provider.send(method, params).
const result = await provider.send('eth_getBlockByHash', ["0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b", false]);
console.log(result);

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

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

const result = await client.request({ method: 'eth_getBlockByHash', params: ["0x4f3a1d6e8c2b9a7e5d3f1c8a4b6e9d2f5a8c3e7b1d4f9a6c2e5b8d3f7a1c4e9b", false] });
console.log(result);

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Last updated 21 days ago

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