catproxy/_book/src/getLocalIps.js

a node proxy or host change tools

import ip from 'ip';
import os from 'os';
import log from './log';
export default function getIps() {
	var interfaces = os.networkInterfaces();
	var all = Object.keys(interfaces).map(function (nic) {
		var addresses = interfaces[nic].filter(function (details) {
			details.family = details.family.toLowerCase();
			if (details.family !== 'ipv4' || ip.isLoopback(details.address)) {
				return false;
			}
			return true;
		});
		return addresses.length ? addresses[0].address : undefined;
	}).filter(Boolean);
	return !all.length ? [] : all;
}

export let localIps =  getIps();
localIps.push(ip.loopback('ipv4'));