How do I handle cache busting in Express.js?

How do I handle cache busting in Express.js?

Cache busting in Express.js can be achieved by appending a version number or a hash to your asset URLs.

Can you give me an example of how to implement that?

Sure! You can use middleware to append a query string to your static file URLs, like this: app.use('/static', express.static('public', { setHeaders: (res, path) => { res.set('Cache-Control', 'no-cache'); } }));.

What if I want to use a hash instead of a version number?

You can generate a hash based on the file content and append it to the filename, ensuring that the URL changes when the file changes.

Are there any libraries that can help with this?

Yes, libraries like webpack or gulp can automate cache busting by generating hashed filenames for your assets.