How to deploy some functions to Cloud Functions for Firebase without affecting some other functions?

Question

When I run

firebase deploy --only functions

it reads the index.js file and updates all functions exported from that file. If on the previous deploy there was a function named a , and in the current deploy there is no such function, a will be deleted.

In other words, the effect is the same as if all existing functions were deleted and then the all functions from the current index.js file were added.

Is it possible to add/update/delete individual functions?

Answer 1

Firebase CLI tools 3.8.0 has added the ability to deploy specific functions.

firebase deploy --only functions:func1,functions:func2

--only <targets>     
only deploy to specified, comma-separated targets (e.g. "hosting,storage"). For functions, 
can specify filters with colons to scope function deploys to only those functions (e.g. "--only functions:func1,functions:func2"). 
When filtering based on export groups (the exported module object keys), use dots to specify group names 
(e.g. "--only functions:group1.subgroup1,functions:group2)"

Answer 2

以下方法适用于我部署特定功能而不影响我的其他功能，其中“specificFunctionName”是我想要部署的功能

firebase deploy --only functions:specificFunctionName

Answer 3

firebaser here

There is currently no way to deploy a single function with the Firebase CLI. Running `firebase deploy` will deploy all functions.

We've recently discussed deploying subsets of the functions, but it's not available at the moment - nor can we give a ballpark of if/when it might be.

Update Since Firebase CLI release the ability to deploy single functions is available. See yuku's answer .

Answer 4

I never managed to get it working (and have no codebase property in my firebase.json) until I tried what @Sergey Mell mentioned in his comment :

firebase deploy --only "functions:func1,functions:func2"

The surrounding double quotes was what solved the issue.

Answer 5

firebase deploy --only "functions:<fileName>.<functionName>"

example folder structure:

functions 
  node_modules
  index.js
  smsNotification.js
  ...

You can redeploy just a function in a file with

firebase deploy --only "functions:smsNotification.sendChatNotif"

You can redploy all functions in a file with

firebase deploy --only "functions:smsNotification"

Answer 6

In case anyone still can't make it work using firebase deploy --only functions:func1,functions:func2 , it's probably because you're probably using codebases, "codebase": "my-codebase" , in your firebase.json . Took me a while to diagnose but after removing that codebase property, deploying only some functions using the --only flag worked for me

Answer 7

This one gave me the missing package. Although package was included but I had to reinstall the mentioned package.

firebase --debug deploy --only functions:[functionName]