eth_maxPriorityFeePerGas - Mantle

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 the current max priority fee per gas in wei. This is used for EIP-1559 transactions to set the priority fee (tip) for miners/validators.

Parameters

None

Request examples

curl

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

request.js

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_maxPriorityFeePerGas",
    "params": [],
    "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));

request.py

import requests
import json

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

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

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

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

main.rs

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

Response

response.json

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x0"
}

Response Parameters

Field

Type

Description

result

string

Max priority fee per gas in wei (hex)

Use Case

The eth_maxPriorityFeePerGas method is essential for:

EIP-1559 transaction fee estimation
Setting appropriate priority fees
Wallet transaction construction
Gas optimization strategies
DApp transaction management

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid ACCESS-TOKEN

Web3 Integration

ethers.js

import { ethers } from 'ethers';

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

const feeData = await provider.getFeeData();
console.log('Max Priority Fee:', ethers.formatUnits(feeData.maxPriorityFeePerGas, 'gwei'), 'gwei');

viem.js

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

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

const maxPriorityFee = await client.request({
    method: 'eth_maxPriorityFeePerGas',
    params: []
});
console.log('Max Priority Fee:', formatGwei(BigInt(maxPriorityFee)), 'gwei');

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