This lib requires no further dependencies.
In config.js you can configure the cache worker's behavior. Most notably:
CACHE_PATH: The location on your local filesystem for data to be cached.
YOUTUBE_API_CACHE_STALE_TIME: The time interval for data to be cached.
YOUTUBE_CHANNEL_ID: The id of the youtube channel to get cached.
In your node express application...
const express = require('express');
const app = express();
// ...REQUIRE THE CACHE WORKER'S ROUTER
const bertaRouter = require('path-to-cache-worker/router');
// ...PASS EXPRESS AND YOUR APP TO THE ROUTER AND app.use IT ON YOUR ROUTE
app.use('/my-cache-route', bertaRouter(app, express));
app.listen('8080');
Done!
The cache worker will now update the youtube data in the interval set in config.js.
You can fetch the cached data with a GET request to your route. Don't forget to pass the resource query parameter with a value from ALLOWED_RESOURCES in config.js.
Example GET path:
/my-cache-route?resource=video