limit-requests

Example to limit requests

This is a working example to limit the concurrency of requests.

Motivation

Using eth-fun without any concurrency can choke the RPC endpoint.

Overview

This example uses the p-limit library to limit concurrency.

const pool = pLimit(concurrency);
const promises = [];

for (let i = 0; i < totalRequests; i++) {
  promises.push(pool(() => blockNumber(options)));
}

Wrapping eth-fun functions in pool ensures at most n number of calls are made. You can see the difference in elapsed time as you change the concurrency.

Usage

$ npm install

$ npm run start