Firebase and Nx: Encountering issues with running emulators

I've been attempting to launch the Firebase emulators within the Nx workspace.

Initially, I added firebase to my project:

npm install firebase @angular/fire --save

nx g @angular/fire:ng-add // configures the package in the project (unsuccessful)
ng add @angular/fire // sets up package in project (successful)

Then, I initialized Firebase in the local directory:

firebase init

Subsequently, I tried to start the emulators:

firebase emulators:start

However, upon running the command, the console displayed the following output:

PS C:\repos\todoapp> firebase emulators:start i emulators: Starting emulators: auth, functions, firestore, hosting, storage ! functions: The following emulators are not running, calls to these services from the Functions emulator will affect production: database, pubsub

  • functions: Using node@14 from host. i firestore: Firestore Emulator logging to firestore-debug.log i hosting: Serving hosting files from: dist/todoapp
  • hosting: Local server: http://localhost:5000 i ui: Emulator UI logging to ui-debug.log i functions: Watching "C:\repos\todoapp\functions" for Cloud Functions... ! Error: Cannot find module 'C:\repos\todoapp\functions\lib\index.js'. Please verify that the package.json has a valid "main" entry at tryPackage (internal/modules/cjs/loader.js:321:19) at Function.Module._findPath (internal/modules/cjs/loader.js:534:18) at Function.Module._resolveFilename (internal/modules/cjs/loader.js:888:27) at Function.Module._load (internal/modules/cjs/loader.js:746:27) at Module.require (internal/modules/cjs/loader.js:974:19) at require (internal/modules/cjs/helpers.js:92:18) at initializeRuntime (C:\Users\patri\AppData\Roaming\npm\node_modules\firebase-tools\lib\emulator\functionsEmulatorRuntime.js:687:29) at processTicksAndRejections (internal/process/task_queues.js:95:5) at async handleMessage (C:\Users\patri\AppData\Roaming\npm\node_modules\firebase-tools\lib\emulator\functionsEmulatorRuntime.js:729:20) ! We were unable to load your functions code. (see above)
    • It appears your code is written in Typescript, which must be compiled before emulation.
    • You may be able to run "npm run build" in your functions directory to resolve this.

Is seamless integration of Firebase with Nx possible?

Do I need to perform additional configurations to ensure smooth operation, similar to what's done in a standard Angular environment?

angularfirebaseangularfire2nrwl-nx

Answer №1

Encountered the same issue myself. Make sure to run npm run build in the functions directory to create the required file.

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