🔥 EIP-1559 Fee Suggestions 🔥
The function suggestFees()
is a utility function written in Javascript and it's intended to use with an ethers.js provider.
It returns an object containing:
maxBaseFee
and maxPriorityFee
suggestionsbaseFeeTrend
indicatorcurrentBaseFee
which is the current block base feeconfirmationTimeByPriorityFee
an object containing estimated times of confirmation by priority fee chosenblocksToConfirmationByPriorityFee
an object containing estimated blocks of wait for a confirmation by priority fee chosenblocksToConfirmationByBaseFee
an object containing estimated blocks of wait for a confirmation by base fee chosen
Usage
import { JsonRpcProvider } from '@ethersproject/providers';
import { suggestFees } from './src';
const main = async() => {
const provider = new JsonRpcProvider(`https://ropsten.infura.io/v3/${YOUR_API_KEY}`);
const ret = await suggestFees(provider);
console.log('Result: ', ret);
}
main();
In addition, you can use specific methods to get maxBaseFee
and maxPriorityFee
specific data.
import { JsonRpcProvider } from '@ethersproject/providers';
import { suggestFees } from './src';
const main = async() => {
const provider = new JsonRpcProvider(`https://ropsten.infura.io/v3/${YOUR_API_KEY}`);
const fromBlock = 'latest' // the block that you want to run the estimations from
const blockCountHistory = 100 // the quantity of blocks you want to take in account for the estimation
const ret = await suggestMaxBaseFee(provider, fromBlock, blockCountHistory);
console.log('Result: ', ret);
}
main();
import { JsonRpcProvider } from '@ethersproject/providers';
import { suggestFees } from './src';
const main = async() => {
const provider = new JsonRpcProvider(`https://ropsten.infura.io/v3/${YOUR_API_KEY}`);
const fromBlock = 'latest' // the block that you want to run the estimations from
const ret = await suggestMaxPriorityFee(provider, fromBlock, blockCountHistory);
console.log('Result: ', ret);
}
main();
Credits
The suggestMaxBaseFee
estimations code is 100% based on the work of @zsfelfoldi published at https://github.com/zsfelfoldi/feehistory/