eth_getBlockTransactionCountByHash - Polygon

Example code for the eth_getBlockTransactionCountByHash json-rpc method. Сomplete guide on how to use eth_getBlockTransactionCountByHash json-rpc in GetBlock.io Web3 documentation.

The eth_getBlockTransactionCountByHash method returns the number of transactions in a block matching the given block hash.

Parameters

Parameter

Type

Required

Description

blockHash

string

Yes

32-byte hash of the block

Request

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getBlockTransactionCountByHash",
    "params": ["0x3f07a9c83155594c000642e7d60e8a8a00038d03e9849171a05ed0e2d47acbb3"],
    "id": "getblock.io"
}'

import axios from 'axios';

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

const payload = {
    jsonrpc: '2.0',
    method: 'eth_getBlockTransactionCountByHash',
    params: ["0x3f07a9c83155594c000642e7d60e8a8a00038d03e9849171a05ed0e2d47acbb3"],
    id: 'getblock.io'
};

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

import requests

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

payload = {
    "jsonrpc": "2.0",
    "method": "eth_getBlockTransactionCountByHash",
    "params": ["0x3f07a9c83155594c000642e7d60e8a8a00038d03e9849171a05ed0e2d47acbb3"],
    "id": "getblock.io"
}

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

use reqwest::header;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::new();
    
    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header(header::CONTENT_TYPE, "application/json")
        .body(r#"{
            "jsonrpc": "2.0",
            "method": "eth_getBlockTransactionCountByHash",
            "params": ["0x3f07a9c83155594c000642e7d60e8a8a00038d03e9849171a05ed0e2d47acbb3"],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x8f"
}

Response Parameters

Field

Type

Description

jsonrpc

string

JSON-RPC version (2.0)

string

Request identifier

result

varies

Number of transactions in the block as hexadecimal

Use Case

The eth_getBlockTransactionCountByHash method is useful for:

Network activity monitoring
Block analysis
Transaction counting
Statistics gathering

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid ACCESS-TOKEN

-32600

Invalid Request

Malformed request body

-32602

Invalid params

Invalid method parameters

Web3 Integration

import { ethers } from 'ethers';

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

const result = await provider.send('eth_getBlockTransactionCountByHash', ["0x3f07a9c83155594c000642e7d60e8a8a00038d03e9849171a05ed0e2d47acbb3"]);
console.log('Result:', result);

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

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

const result = await client.request({
    method: 'eth_getBlockTransactionCountByHash',
    params: ["0x3f07a9c83155594c000642e7d60e8a8a00038d03e9849171a05ed0e2d47acbb3"]
});
console.log('Result:', result);

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