eth_maxPriorityFeePerGas - Arbitrum Nova

Example code for the eth_maxPriorityFeePerGas JSON-RPC method. Complete guide on how to use eth_maxPriorityFeePerGas JSON-RPC in GetBlock Web3 documentation.

This method returns a suggested max priority fee per gas (the miner/sequencer tip) in wei for EIP-1559 transactions. It is used to build type-2 transactions that confirm promptly on GIWA Sepolia.

Parameters

This method does not require any parameters. Send the request with an empty params array.

Request

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

Axios

example.js

const axios = require('axios');

const response = await axios.post('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/', {
    jsonrpc: '2.0',
    method: 'eth_maxPriorityFeePerGas',
    params: [],
    id: 'getblock.io'
}, {
    headers: { 'Content-Type': 'application/json' }
});

console.log(response.data.result);

Request

example.py

import requests

response = requests.post(
    'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/',
    headers={'Content-Type': 'application/json'},
    json={
        'jsonrpc': '2.0',
        'method': 'eth_maxPriorityFeePerGas',
        'params': [],
        'id': 'getblock.io'
    }
)

print(response.json())

Rust

example.rs

use reqwest::Client;
use serde_json::{json, Value};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let response = client
        .post("https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&json!({
            "jsonrpc": "2.0",
            "method": "eth_maxPriorityFeePerGas",
            "params": [],
            "id": "getblock.io"
        }))
        .send()
        .await?
        .json::<Value>()
        .await?;

    println!("Result: {}", response["result"]);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0xf4240"
}

Response Parameters

Parameter	Type	Description
jsonrpc	string	JSON-RPC protocol version ("2.0")
id	string	Request identifier matching the request
result	string	Hex-encoded suggested priority fee in wei

Use Cases

• EIP-1559 Fees: Set maxPriorityFeePerGas on type-2 transactions

• Fee Strategy: Combine with base fee to compute maxFeePerGas

• Inclusion Speed: Bid a higher tip when faster inclusion is needed

• Wallet UX: Populate a default priority fee in a signing UI

Error Handling

Error Code	Message	Description
-32603	Internal error	The node failed to compute a priority fee suggestion
-32601	Method not found	The method is unavailable on the client build

Web3 Integration

Ethers.js

ethers-example.js

import { ethers } from 'ethers';

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

const feeData = await provider.getFeeData();
console.log(feeData.maxPriorityFeePerGas);

Viem

viem-example.js

import { createPublicClient, http } from 'viem';

const client = createPublicClient({
  transport: http('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/')
});

const tip = await client.estimateMaxPriorityFeePerGas();