sample.js

const startCpu = process.cpuUsage();
const os = require("os");
const saveLocal = require(".");
const AssetCache = saveLocal.AssetCache;

(async () => {
	saveLocal.concurrency = 2;
	let options = {
		duration: "4h",
	};

	let promises = [];

	// don’t await here to test concurrency
	let first = saveLocal("https://www.zachleat.com/img/avatar-2017-big.png", options);
	promises.push(first);

	promises.push(saveLocal("https://github.com/11ty/eleventy/releases.atom", {
		type: "text"
	}));

	// let second = saveLocal("https://www.zachleat.com/img/avatar-2017-big.png", options);
	// promises.push(second);

	// promises.push(saveLocal("https://www.zachleat.com/web/css/fonts/lato/2.0/LatoLatin-Regular.ttf", options));

	// let json = saveLocal("https://opencollective.com/11ty/members/all.json", {
	// 	duration: options.duration,
	// 	type: "json"
	// });
	// promises.push(json);

	let asset = new AssetCache("twitter-followers-eleven_ty");
	if (asset.isCacheValid("4d")) {
		console.log(await asset.getCachedValue());
	} else {
		asset.save({ followers: 42 }, "json");
	}

	await Promise.all(promises);

	// console.log( JSON.stringify(await json).substr(0, 100), "… (truncated)" );

	console.log(process.cpuUsage(startCpu));
	console.log(os.freemem() / (1024 * 1024), os.totalmem() / (1024 * 1024));
	// console.log( process.memoryUsage() );
	// console.log( process.resourceUsage() );
})();