从 PWA 服务工作者调用 Firebase Callable Function 以响应对推送通知的点击

Question

My PWA and service worker are in place, I have push notifications setup, and I have a listener ready for when they are clicked. Now I want to call a Firebase Callable Function from within this listener.

From the doc , the only Firebase library a service worker can use is Firebase Messaging:

// Give the service worker access to Firebase Messaging.
// Note that you can only use Firebase Messaging here. Other Firebase libraries
// are not available in the service worker.

So the piece that facilitates calls to Callable Functions is not available, right? Is the only option left for me to use the protocol specs and call them directly? Using fetch for instance. Any example would be great!

Answer 1

Here's my sample on using Callable Functions, with REST API:

• callables.js

This is the worker source:

• worker.js

I chose to go this way, because it's not much harder than using Firebase clients, and I already had similar code available.