npm:getport | Skypack

Usage no npm install needed!

<script type="module">
  import getport from 'https://cdn.skypack.dev/getport';
</script>

README

getport

npm install getport

Find an open port to listen on.

`getport(function (e, port) {})``

var getport = require('getport')
getport(function (e, p) {
  if (e) throw e
  server.listen(p)
})

Note: getport uses a TCP client to check the ports and see if anyone has bound to them. If you do not have permission to bind to a port you may still get an error.

`getport(start, function (e, port) {})`

getport(5000, function (e, p) {
  if (e) throw e
  assert.equal(5000, p)
})

`getport(start, end, function (e, port) {})`

getport(6000, 5999, function (e, p) {
  assert.ok(e)
})