eth_getTransactionCount - opBNB

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

This method returns the number of transactions sent from an address (the account nonce). The nonce is required when constructing the next transaction from this account.

Parameters

Parameter

Type

Required

Description

address

string

Yes

20-byte address to query

blockParameter

string

Yes

Block number in hex, or "latest", "earliest", "pending", "safe", "finalized"

Request Example

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": [
        "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
        "latest"
    ],
    "id": "getblock.io"
}'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": [
        "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
        "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, 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_getTransactionCount",
    "params": [
        "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
        "latest"
    ],
    "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_getTransactionCount",
        "params": [
                "0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2",
                "latest"
        ],
        "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": "0x42"
}

Response Parameters

Field

Type

Description

result

string

Account nonce — number of transactions sent from this address (hex)

Use Cases

Obtaining the next nonce before constructing a transaction
Pre-flight checks in wallet UIs
Replay-attack prevention by reading the latest committed nonce
Detecting pending transactions by diffing pending and latest nonces

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_getTransactionCount', ["0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2", "latest"]);
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_getTransactionCount', params: ["0x9e7c5e3e3a3b8e1aa0e2d4c7f9d4b0c8b8d5f1a2", "latest"] });
console.log(result);

Previouseth_getTransactionByHash - opBNB Nexteth_getTransactionReceipt - opBNB

Last updated 21 days ago

Was this helpful?