firebase deploy --only functions overrides existing functions

Question

Running firebase deploy --only functions deletes the existing functions before creating new ones. Is it possible to modify this behavior to create if not exist, update if exists, no actions if functions not being deployed?

Solution 1

You can use firebase partial deploys

$ firebase deploy --only functions:makeUppercase

Will only deploy makeUppercase function.

Hope it helps.

Note: To deploy more than one function at once (but not all) use:

$ firebase deploy --only functions:function1,functions:function2

Solution 2

firebaser here

Running firebase deploy will deploy all functions in the project. There is currently no option to deploy just new or modified functions.

It does sound like a useful addition though, so you might want to file a feature request.

Update: since version 3.8 of the Firebase tools CLI this is possible. See Pablo's answer or the release notes.

Solution 3

Make sure you are editing the functions in your "functions/src" directory and not the functions in your 'lib' directory. I made this mistake and watched them get replaced...

Comments

[Quan Vuong]

Thanks Frank. You have helped me out more than once :)

[Quan Vuong]

feature request filed. Thanks for the link!

[Quinn Turner]

I could use some help with this! I would like to deploy multiple functions as well. I have set up my project structure exactly like github.com/firebase/functions-samples has. In fact, I used it as a base, stripped all but two functions, modified, and want to deploy. I have tried firebase deploy, firebase deploy --only ..., and comma separated attempts.

[Quinn Turner]

If I run "firebase deploy" from root I get that it couldn't locate firebase.json. My guess is I have to restructure the applications, but I haven't had any luck after trying a few alternatives.

[Scott]

@QuinnTurner Try running firebase init, which will add all necessary files.

[Frank van Puffelen]

@QuinnTurner please don't post new questions in a comment. If you have a new problem, post a new question. Be sure to include the minimal code that reproduces the problem in that question (and read the link, it's quite useful).

[Thorbjørn Kappel Hansen]

It's also possible to deploy multiple functions in a partial deploy: firebase deploy --only functions:function1,functions:function2

[Simon Moshenko]

I believe the best solution would be using groups, also seen in the documentation link.

[Ramesh Vishnoi]

Thanks. This saved lot of time

[Mars2024]

But how should you actually NAME your firebase functions? What does it Actually look like?