Regarding external private packages that are relied upon by firebase functions as well as "isolated" packages.

[JohnValanidas]

Hey, first off I want to say this is an awesome library and I greatly enjoy your write ups and seeing you pop up in various discussions across GitHub.

Up until recently I was doing the relatively hacky solution of packing, installing and segmenting my functions from the rest of my mono repo (npm i --workspaces=false) with a complex install script to get things deployed. While it does work it's also realitivly fragile. I decided it's time and wanted to move to using this package and break away from the hacky solutions, but I am now running into another problem.

I have a project structure that looks like the following:

firebase/
 functions/
   ....
   (we know what's here)
apps/
  (different applications)
packages/
  (various shared libraries to be used by functions and apps)

I have a package in the packages folder called "models" that also relies on an external library that's also installed in my firebase functions folder. When I try and deploy the project I get the following error:

Error: Cannot find module '@REDACTED/datamanager/src/FirestoreTypes'
Require stack:
- /home/valanidas/projects/@REDACTED/packages/models/build/index.js
- /home/valanidas/projects/@REDACTED/firebase/functions/build/FUNCTIONA.js
- /home/valanidas/projects/@REDACTED/firebase/functions/build/index.js
- /home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/runtime/loader.js
- /home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/bin/firebase-functions.js
    at Module._resolveFilename (node:internal/modules/cjs/loader:1225:15)
    at Module._load (node:internal/modules/cjs/loader:1051:27)
    at Module.require (node:internal/modules/cjs/loader:1311:19)
    at require (node:internal/modules/helpers:179:18)
    at Object.<anonymous> (/home/valanidas/projects/@REDACTED/packages/models/build/index.js:1539:29)
    at Module._compile (node:internal/modules/cjs/loader:1469:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)
    at Module.load (node:internal/modules/cjs/loader:1288:32)
    at Module._load (node:internal/modules/cjs/loader:1104:12)
    at Module.require (node:internal/modules/cjs/loader:1311:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/valanidas/projects/@REDACTED/packages/models/build/index.js',
    '/home/valanidas/projects/@REDACTED/firebase/functions/build/FUNCTIONA.js',
    '/home/valanidas/projects/@REDACTED/firebase/functions/build/index.js',
    '/home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/runtime/loader.js',
    '/home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/bin/firebase-functions.js'
  ]
}

The @REDACTED/datamanager/src/FirestoreTypes is used in multiple places across the app and currently has the same namespace as everything else. My expo, vite and library packages all behave fine.

• Some notes this external library is also a private package that's deployed to a google registry.
• I am using yarn 4.0.1

Am I just not using this isolate package correctly? Any help would be greatly appreciated.

[JohnValanidas]

Okay, I think i configured it more closely to how it should be done, but I'm still getting an error.

This file does exist in that isolate/build output as well.

Error: Cannot find module './FUNCTIONA'
Require stack:
- /home/valanidas/projects/@REDACTED/firebase/functions/isolate/build/index.js
- /home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/runtime/loader.js
- /home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/bin/firebase-functions.js
    at Module._resolveFilename (node:internal/modules/cjs/loader:1225:15)
    at Module._load (node:internal/modules/cjs/loader:1051:27)
    at Module.require (node:internal/modules/cjs/loader:1311:19)
    at require (node:internal/modules/helpers:179:18)
    at Object.<anonymous> (/home/valanidas/projects/REDACTED/firebase/functions/isolate/build/index.js:42:14)
    at Module._compile (node:internal/modules/cjs/loader:1469:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)
    at Module.load (node:internal/modules/cjs/loader:1288:32)
    at Module._load (node:internal/modules/cjs/loader:1104:12)
    at Module.require (node:internal/modules/cjs/loader:1311:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/valanidas/projects/@REDACTED/firebase/functions/isolate/build/index.js',
    '/home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/runtime/loader.js',
    '/home/valanidas/projects/@REDACTED/firebase/functions/node_modules/firebase-functions/lib/bin/firebase-functions.js'
  ]
}

[JohnValanidas]

Solved!

Okay, there were two changes that I made that I believe contributed to the solution here.

1. I changed the namespace of the private package to not match the same as the package's namespace from the monorepo.
2. I went and modified the private package's index to properly export the /src/FirestoreTypes as apart of the index.ts file. I didn't catch that the LSP imported it that way because it was being packed with the build files, but not apart of the main entry-point for the package (the package.json's main vs files fields). I actually suspect this was the primary issue when bundling everything together.

Thanks again for such an amazing package. This really ended up cleaning up my build process.

[0x80]

Thanks for the kind words and happy to hear you've figured it out!