npm install address_util --saveIn your node program:
let addressUtil = require('address_util')
// get current machine local address
const currentIp = addressUtil.getCurrentIp() // example: 192.168.1.2
// get new port to listen
addressUtil.findPortToListen(8080, port => {
// if 8080 is not occupied , port > 8080
// else other port which is not occupied
})
// have not default port, find from 8080
addressUtil.findPortToListen(port => {})
// promise
addressUtil.findPortToListen(8080).then(port => {})
addressUtil.findPortToListen().then(port => {})
// get client real request ip
const http = require('http')
const server = http.createServer((req, res) => {
// real ip
const realClientIp = addressUtil.getClientIp(req)
res.end(realClientIp)
})MIT. Copyright (c) SoberZ.