The list of CloudFlare IPs (IP ranges) to be used in the trust proxy configurations.

$ npm install cloudflare-ips    # or, `yarn add cloudflare-ips`

const express = require('express');
const cloudflareIPs = require('cloudflare-ips');

const app = express();

cloudflareIPs(
  ips => app.set('trust proxy', ['loopback', ...ips]),
  err => console.error(err.stack),
);

cloudflareIPs((err, ips) => {
  app.set('trust proxy', ['loopback', ...ips]);
});

app.listen(8080);

• onUpdate: (ips: string[]) => void — a callback function accepting the list of IPs
• onError: (err: Error) => void — a callback that is triggered on error (optional)
• options: { inteval: number } — allows to tweak the default settings (optional)

• Node.js API Starter Kit — Boilerplate and tooling for building data APIs with Docker, Node.js and GraphQL

Copyright © 2017-present Kriasoft. This source code is licensed under the MIT license found in the LICENSE.txt file.

Made with ♥ by Konstantin Tarkus (@koistya, blog)