get-port-please

npm i get-port-please

// ESM
import {
  getPort,
  checkPort,
  getRandomPort,
  waitForPort,
} from "get-port-please";

// CommonJS
const {
  getPort,
  checkPort,
  getRandomPort,
  waitForPort,
} = require("get-port-please");

getPort(options?: GetPortOptions): Promise<number>
checkPort(port: number, host?: string): Promise<number | false>
waitForPort(port: number, options): Promise<number | false>

interface GetPortOptions {
  name?: string;

  random?: boolean;
  port?: number;
  portRange?: [fromInclusive: number, toInclusive: number];
  ports?: number[];
  host?: string;

  memoDir?: string;
  memoName?: string;
}