eth_getBlockTransactionCountByNumber - zkSync

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

Returns the number of transactions in an L2 block, given the block number or tag.

Parameters

Parameter	Type	Required	Description
blockParameter	string	Yes	Block number in hex, or "latest", "earliest", "pending", "safe", "finalized"

Request Example

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_getBlockTransactionCountByNumber",
    "params": [
        "latest"
    ],
    "id": "getblock.io"
}'

JavaScript (Axios)

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getBlockTransactionCountByNumber",
    "params": [
        "latest"
    ],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://shared.eu-central-1.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));

Python (Requests)

import requests
import json

url = "https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_getBlockTransactionCountByNumber",
    "params": [
        "latest"
    ],
    "id": "getblock.io"
})

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

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

Rust (Reqwest)

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_getBlockTransactionCountByNumber",
        "params": [
                "latest"
        ],
        "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

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x14"
}

Response Parameters

Field	Type	Description
result	string	Number of transactions in the block (hex)

Use Cases

• Computing L2 throughput statistics

• Pagination cursors for transaction-level indexers

• Detecting empty vs full blocks

Error Handling

Status Code	Error Message	Cause
403	Forbidden	Missing or invalid <ACCESS-TOKEN>
-32602	Invalid params	Request parameters are missing or malformed
429	Too Many Requests	Rate limit exceeded for your plan

SDK Integration

zksync-ethers (JavaScript)

import { Provider } from 'zksync-ethers';

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

// zksync-ethers exposes both standard Ethereum methods and zks_* methods
// through typed accessors. For raw access:
const result = await provider.send('eth_getBlockTransactionCountByNumber', ["latest"]);
console.log(result);

zksync2-python (Python)

from zksync2.module.module_builder import ZkSyncBuilder

zk_web3 = ZkSyncBuilder.build('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/')

# zksync2-python exposes the JSON-RPC layer directly.
result = zk_web3.zksync._zks_endpoints if 'eth_getBlockTransactionCountByNumber'.startswith('zks_') else None
# Or call any method generically:
result = zk_web3.provider.make_request('eth_getBlockTransactionCountByNumber', ["latest"])
print(result)