Author: Drewry Pope
Any copyright is dedicated to the Public Domain.
https://creativecommons.org/publicdomain/zero/1.0/

Issues & PRs welcome!!

"usage" : "integers only, warning: NaN === 0"

import sleep from 'sleep-atomic';
const sleepSeconds = process.env.SLEEP_SECONDS || 10;
sleep(sleepSeconds * 1000);

import { sleep: sleepWithLog } from 'sleep-atomic';
const sleepSeconds = process.env.SLEEP_SECONDS || 10;
sleep(sleepSeconds * 1000);

./server.js is executable. Raise an issue if you'd like, I can enable global install & set logs behind a flag so no output for plain calls.

"functions" : "in case you'd like to copy paste, avoid the import."

async function sleep (ms) {
    return new Promise(resolve => Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, ms));
}

async function sleepWithLog (ms) {
    console.log('{ "sleep" : { "parameters: [ { "ms" : "' + ms + '" } ] } }' );
    return new Promise(resolve => Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, ms));
}

"import" : "index.js"

import path from 'path' ;
import process from 'process' ;

function coerceToInt(input) {
    const potentialNumber = Number.parseInt(input) ;
    return Number.isNaN(potentialNumber) ? 0 : potentialNumber ;
}

export default async function sleep (ms) {
    return new Promise(resolve => Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, coerceToInt(ms))) ;
}

export async function sleepWithLog (ms) {
    const finalMs = coerceToInt(ms) ;
    console.log('{ "app" : "' + path.basename(path.dirname(process.argv[1])) + '" } , "details" : { "sleep_milliseconds" : "' + finalMs + '" , "parameters": ' + JSON.stringify(process.argv) + ' } }' ) ;
    return sleep(finalMs) ;
}

"run start" : "server.js"

import { sleepWithLog } from 'sleep-atomic'
import path from 'path';
console.log('{ "app" : "' + path.basename(path.dirname(process.argv[1])) + '" } , "details" : { "directly-called": true } }');
sleepWithLog((process.argv[2] || process.env.SLEEP_SECONDS || 10) * 1000);