POST
/
4ab982aa70a7baead515ffdb5915df3f
curl --request POST \
  --url https://fantom-mainnet.core.chainstack.com/4ab982aa70a7baead515ffdb5915df3f \
  --header 'Content-Type: application/json' \
  --data '{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_maxPriorityFeePerGas",
  "params": []
}'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": "aSDinaTvuI8gbWludGxpZnk="
}

Fantom API method that returns an estimate of the current priority fee per gas. This fee is the tip that users may pay miners,post-merge, to validators on top of the base fee to incentivize the inclusion of their transactions in a block. This method helps users adjust their transaction fees in a dynamic market, ensuring transactions are processed promptly without overpaying.

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Parameters

  • none

Response

  • quantity — the estimated priority fee per gas needed, represented as a hexadecimal string.

eth_maxPriorityFeePerGas code examples

const { Web3, Web3PluginBase } = require("web3");

const NODE_URL = "CHAINSTACK_NODE_URL";

const web3 = new Web3(NODE_URL);



// Define the MaxPriorityFeePerGas class

class MaxPriorityFeePerGas extends Web3PluginBase {

    pluginNamespace = 'ethFee';



    async getMaxPriorityFeePerGas() {

        return this.requestManager.send({

            method: 'eth_maxPriorityFeePerGas',

            params: [],

        });

    }

}



// Register the plugin with Web3

web3.registerPlugin(new MaxPriorityFeePerGas());



// Function to get the max priority fee per gas using the custom plugin

async function getMaxPriorityFeePerGas() {

    try {

        const maxPriorityFeePerGas = await web3.ethFee.getMaxPriorityFeePerGas();

        console.log(`Estimated max priority fee per gas: ${maxPriorityFeePerGas}`);

    } catch (error) {

        console.error("Error fetching max priority fee per gas:", error);

    }

}



// Call the function

getMaxPriorityFeePerGas();

Use Case

A practical use case for eth_maxPriorityFeePerGas using ethers.js is to calculate transaction fees dynamically for applications and wallets to accurately estimate the cost of transactions, especially during periods of high network congestion. This method ensures transactions are confirmed promptly without overpaying. By fetching the current priority fee (maxPriorityFeePerGas) and the maximum fee per gas (maxFeePerGas), applications can dynamically calculate the total transaction fee required for prompt processing under the current network conditions.

Body

application/json
id
integer
default:1
jsonrpc
string
default:2.0
method
string
default:eth_maxPriorityFeePerGas
params
any[]

Response

200 - application/json
The estimated max priority fee per gas
jsonrpc
string
id
integer
result
string