cache check

index.js

let request = require('async-request')
let tough = require('tough-cookie')
const Cookie = tough.Cookie
const url = 'https://www.example.org/'

async function start(event, context) {
	const response = await request(url, {
		method: 'GET',
		headers: {
			'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0'
		}
	});

	let cookie = Cookie.parse(response.headers['set-cookie'].join('; '))

	if(response.statusCode !== 200) {
		return {
			statusCode: 500,
			body: new Error('Did not recieve HTTP OK (200)')
		}
	}
	
	if(!response.headers.hasOwnProperty('x-litespeed-cache')) {
		return {
			statusCode: 500,
			body: new Error('Did not find litespeed cache header')
		}
	}

	if(response.headers['x-litespeed-cache'] !== 'hit') {
		// Try again using the cookie we just got
		const r2 = await request(url, {
			method: 'GET',
			headers: {
				'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0'
			},
			cookieJar: cookie
		});

		if(r2.headers['x-litespeed-cache'] !== 'hit') {
			return {
				statusCode: 500,
				body: new Error('OLS Cache was not hit'),
				b: r2.headers
			}
		}
	}
	
	return {
		statusCode: 200, body: 'OK'
	}
}

start().then(response => {
	console.log(response)
})

module.exports = start

package.json

{
  "name": "serverstatus",
  "version": "1.0.0",
  "description": "Checks status of things",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "app": "node index.js"
  },
  "author": "Josh",
  "license": "ISC",
  "dependencies": {
    "async-request": "^1.2.0",
    "tough-cookie": "^3.0.1"
  }
}