- I have a React app that I'd like to deploy to multiple environments (dev, staging, prod).
- each env is a separate Firebase project with its own config (apiKey, databseURL, etc). currently I hold multiple
firebase-config.jsonfor each env and use a switch in source code to determine which to use. - I am using Firebase hosting for the app.
- The hosting docs state that I can fetch a special reserved url
/__/firebase/init.json(or script in/__/firebase/init.js) that firebase hosting prepares for each project separately so I can init the correct instance of the firebase app for that environment. Also see the blog post here
What I can't figure out is: fetching the special js/json file over the network is async and in the meantime the react app is initialising and requires the firebase app for auth and other operations. Is there a way I can complete the firebase init and have a firebase app instance ready before react has started-up?
