pid-port

Get the ID of the process that uses a certain port

Install

$ npm install pid-port

Usage

const pidPort = require('pid-port');

(async () => {
	try {
		console.log(await pidPort.portToPid(8080));
		//=> 1337

		const pids = await pidPort.portToPid([8080, 22]);

		console.log(pids.get(8080));
		//=> 1337

		console.log(pids.get(22));
		//=> 12345
	} catch (error) {
		console.log(error);
		//=> 'Could not find a process that uses port `8080`'
	}
})();

API

pidPort.portToPid(port)

Returns a Promise<number> (integer) with the process ID.

port

Type: number (integer)

Port to look up.

pidPort.portToPid(ports)

Returns a Promise<Map<number, number>> (integer) with the port as key and the process ID as value.

ports

Type: number[] (integer)

Ports to look up.

pidPort.pidToPorts(pid)

Returns a Promise<Set<number>> with the ports.

pid

Type: number

Process ID to look up.

pidPort.pidToPorts(pids)

Returns a Promise<Map<number, Set<number>>> with the process ID as the key and the ports as value.

pids

Type: number[]

Process IDs to look up.

pidPort.all()

Get all process IDs from ports.