eth_getTransactionCount - HyperEVM

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

This method returns the number of transactions sent from an address (nonce).

Parameters

Parameter

Type

Required

Description

address

string

Yes

Address to check.

block

string

Yes

Block parameter (only "latest" supported).

Request

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
    "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)))
    .catch(error => console.log(error));

import requests
import json

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

payload = json.dumps(
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
    "id": "getblock.io"
})

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

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

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_getTransactionCount",
    "params": ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
    "id": "getblock.io"
}"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}

cURL

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
    "id": "getblock.io"
}'

JavaScript (Ethers.js)

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

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

async function getNonce() {
    const nonce = await provider.getTransactionCount('0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21');
    console.log('Nonce:', nonce);
}

getNonce();

Python (Web3.py)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider('https://go.getblock.io/<ACCESS-TOKEN>/'))

nonce = w3.eth.get_transaction_count('0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21')
print(f'Nonce: {nonce}')

Rust

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_getTransactionCount",
            "params": ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x1a"
}

Response Parameters

Field

Type

Description

result

string

Transaction count/nonce (hex).

Use Case

The eth_getTransactionCount method is essential for:

Setting nonce for new transactions
Transaction sequencing
Detecting pending transactions
Account activity analysis
Preventing nonce collisions

Error Handling

Error Code

Message

Cause

-32602

Invalid params

Invalid address format.

-32603

Internal error

Node issue.

Web3 Integration

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

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

async function getNonce() {
    const nonce = await provider.getTransactionCount('0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21');
    console.log('Nonce:', nonce);
}

getNonce();

import { createPublicClient, http } from "viem";
import { hyperEvm } from "viem/chains";

// Create Viem client with GetBlock
const client = createPublicClient({
  chain: hyperEvm,
  transport: http(import.meta.env.HYPER_ACCESS_TOKEN),
});

// Using the method through Viem
async function Call() {
  try {
    // Method-specific Viem implementation
    const result = await client.request({
      method: "eth_getTransactionCount",
    params: ["0x742d35Cc6634C0532925a3b844Bc9e7595f5bE21", "latest"],
    });
    return result;
  } catch (error) {
    console.error("Viem Error:", error);
    throw error;
  }
}

Previouseth_feeHistory - HyperEVM Nexteth_getBlockTransactionCountByNumber - HyperEVM

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