eth_maxPriorityFeePerGas - BSC

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

This method returns the current max priority fee per gas for EIP-1559 transactions. Note that BSC uses legacy gas pricing, so this may return 0 or not be fully implemented.

BSC uses legacy gas pricing. This method may return 0 or not be fully implemented on BSC.

Parameters

none

Request Example

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

const axios = require('axios');

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

const payload = {
    jsonrpc: '2.0',
    method: 'eth_maxPriorityFeePerGas',
    params: [],
    id: 'getblock.io'
};

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

request.py

import requests

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

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

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

main.rs

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_maxPriorityFeePerGas",
        "params": [],
        "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": "0x0"
}

Response Parameters

Parameter

Type

Description

result

string

Priority fee (often 0x0 on BSC)

Use Cases

EIP-1559 compatibility checks
Cross-chain fee estimation

Error Handling

Error Code

Description

-32601

Method not supported

-32603

Internal error

SDK Integration

ethers.js

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

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

// BSC uses legacy gas - use eth_gasPrice instead
const gasPrice = await provider.getGasPrice();
console.log('Gas Price:', ethers.formatUnits(gasPrice, 'gwei'), 'Gwei');

viem.js

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

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

// BSC uses legacy gas pricing
const gasPrice = await client.getGasPrice();
console.log('Gas Price:', gasPrice);

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