JSPM – find-free-port@1.1.0

Package Exports

find-free-port

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (find-free-port) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

find-free-port

Find free tcp port or ports to listen locally.

Installation

npm install find-free-port

Examples

Find a free port to listen on, begin from 3000

var fp = require("find-free-port")
fp(3000, function(err, freePort){
});

Find a free port to listen on, begin from 3000, but stop at 3100 (not including 3100)

var fp = require("find-free-port")
fp(3000, 3100, function(err, freePort){
});

Find a free port to listen on, begin from 3000, stop at 3100, bound to ip 127.0.0.1 only

var fp = require("find-free-port")
fp(3000, 3100, '127.0.0.1', function(err, freePort){
});

Find a free port to listen on, begin from 3000, bound to ip 127.0.0.1 only

var fp = require("find-free-port")
fp(3000, '127.0.0.1', function(err, freePort){
});

Find a few free ports to listen on, begin from 3000, bound to ip 127.0.0.1 only

var fp = require("find-free-port")
fp(3000, 3100, '127.0.0.1', 3, function(err, p1, p2, p3){
});

Promise

If the callback is omitted, then the call returns a Promise that resolve to a list of avaiable ports:

var fp = require("find-free-port")
fp(3000).then(([freep])=>{
    console.log("found ' + freep);
}).catch((err)=>{
    console.error(err);
});