https://github.com/sindresorhus/pid-port

Get the ID of the process that uses a certain port
https://github.com/sindresorhus/pid-port

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Get the ID of the process that uses a certain port

• Host: GitHub
• URL: https://github.com/sindresorhus/pid-port
• Owner: sindresorhus
• License: mit
• Created: 2020-12-27T10:34:28.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2023-11-04T15:03:53.000Z (11 months ago)
• Last Synced: 2024-04-14T11:09:15.495Z (5 months ago)
• Language: JavaScript
• Homepage:
• Size: 20.5 KB
• Stars: 137
• Watchers: 6
• Forks: 6
• Open Issues: 3
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

        
# pid-port

> Get the ID of the process that uses a certain port

## Install

```sh

npm install pid-port

```

## Usage

```js

import {portToPid} from 'pid-port';

try {

	console.log(await portToPid(8080));

	//=> 1337

	const pids = await 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

### portToPid(port)

Get the process ID for a port.

Returns a `Promise` *(integer)* with the process ID.

#### port

Type: `number` *(integer)*

The port to look up.

### portToPid(ports)

Get the process IDs for multiple ports.

Returns a `Promise>` *(integer)* with the port as key and the process ID as value.

#### ports

Type: `number[]` *(integer)*

The ports to look up.

### pidToPorts(pid)

Get the ports for a process ID.

Returns a `Promise>` with the ports.

#### pid

Type: `number`

The process ID to look up.

### pidToPorts(pids)

Get the ports for multiple process IDs.

Returns a `Promise>>` with the process ID as the key and the ports as value.

#### pids

Type: `number[]`

The process IDs to look up.

### allPortsWithPid()

Get all ports with their process ID.

Returns a `Promise>` *(integer)* with the port as key and the process ID as value.

## Related

- [fkill-cli](https://github.com/sindresorhus/fkill-cli) - Uses this package to let you kill the process that occupies a certain port

- [pid-cwd](https://github.com/neeksandhu/pid-cwd) - Find the working directory of a process from its process ID