Automatically Generate A New Service Worker Version
The rule of thumb with service workers is that a new one will install if there is a byte-difference compared to the one the browser already has installed.
The best way to trigger a new service worker install is if you make a slight modification to your existing service worker file (
sw.js) such as the
CACHE_NAME (refer to the service worker example below).
Service Worker Example
Usually, people will have a version number like
v-1 and increment it each time
v-3, etc. But that is tedious and repetitive, so I wrote an automated node script which updates the version name to the latest timestamp.
Below is a node script you can integrate into your build job to autogenerate the
CACHE_NAME within the service worker.
Make the file executable using the following command:
chmod +x generate-new-service-worker-version.js
Then run the script with node like so:
I hope you found this script super useful and get as much benefit out of it as I did. Cheers.