Parameters declared `defineFloat()` not supported in Firebase CLI

[mattixiv]

[REQUIRED] Environment info

firebase-tools: 11.20.0

firebase-functions: 4.1.1

Platform: macOS, Debian

[REQUIRED] Test case

1. Initialize Firebase project with functions only,
2. update firebase-admin and firebase-functions,
3. ensure there are no .env files in functions dir,
4. replace functions/index.js contents with:

const functions = require("firebase-functions");
const { defineFloat } = require("firebase-functions/params");

const randomFloat = defineFloat("RANDOM_FLOAT");

exports.helloWorld = functions.https.onRequest((request, response) => {
  functions.logger.info(randomFloat.value());
  response.send("Hello from Firebase!");
});

[REQUIRED] Steps to reproduce

Run firebase start:emulators --only functions.

[REQUIRED] Expected behavior

CLI asks user to provide value for RANDOM_FLOAT, which is then stored in an .env file.

[REQUIRED] Actual behavior

❯ firebase emulators:start --only functions --debug
[2023-01-17T14:03:47.943Z] > command requires scopes: ["email","openid","https://www.googleapis.com/auth/cloudplatformprojects.readonly","https://www.googleapis.com/auth/firebase","https://www.googleapis.com/auth/cloud-platform"]
[2023-01-17T14:03:47.943Z] > authorizing via signed-in user (...)
i  emulators: Starting emulators: functions {"metadata":{"emulator":{"name":"hub"},"message":"Starting emulators: functions"}}
[2023-01-17T14:03:49.874Z] [logging] Logging Emulator only supports listening on one address (127.0.0.1). Not listening on ::1
⚠  ui: Emulator UI unable to start on port 4000, starting on 4018 instead. {"metadata":{"emulator":{"name":"ui"},"message":"Emulator UI unable to start on port 4000, starting on 4018 instead."}}
[2023-01-17T14:03:49.874Z] assigned listening specs for emulators {"user":{"hub":[{"address":"127.0.0.1","family":"IPv4","port":4400},{"address":"::1","family":"IPv6","port":4400}],"logging":[{"address":"127.0.0.1","family":"IPv4","port":4500}],"ui":[{"address":"127.0.0.1","family":"IPv4","port":4018},{"address":"::1","family":"IPv6","port":4018}]},"metadata":{"message":"assigned listening specs for emulators"}}
[2023-01-17T14:03:49.878Z] [hub] writing locator at /var/folders/sp/hsmy0vld0xzdppy46t9xzbtm0000gn/T/hub-bug-thunderdome.json
[2023-01-17T14:03:50.183Z] [functions] Functions Emulator only supports listening on one address (127.0.0.1). Not listening on ::1
[2023-01-17T14:03:50.183Z] [eventarc] Eventarc Emulator only supports listening on one address (127.0.0.1). Not listening on ::1
[2023-01-17T14:03:50.183Z] late-assigned ports for functions and eventarc emulators {"user":{"hub":[{"address":"127.0.0.1","family":"IPv4","port":4400},{"address":"::1","family":"IPv6","port":4400}],"logging":[{"address":"127.0.0.1","family":"IPv4","port":4500}],"ui":[{"address":"127.0.0.1","family":"IPv4","port":4018},{"address":"::1","family":"IPv6","port":4018}],"functions":[{"address":"127.0.0.1","family":"IPv4","port":5001}],"eventarc":[{"address":"127.0.0.1","family":"IPv4","port":9299}]},"metadata":{"message":"late-assigned ports for functions and eventarc emulators"}}
⚠  functions: The following emulators are not running, calls to these services from the Functions emulator will affect production: auth, firestore, database, hosting, pubsub, storage {"metadata":{"emulator":{"name":"functions"},"message":"The following emulators are not running, calls to these services from the Functions emulator will affect production: \u001b[1mauth, firestore, database, hosting, pubsub, storage\u001b[22m"}}
✔  functions: Using node@16 from host. {"metadata":{"emulator":{"name":"functions"},"message":"Using node@16 from host."}}
[2023-01-17T14:03:50.186Z] defaultcredentials: writing to file /Users/matti/.config/firebase/.._application_default_credentials.json
[2023-01-17T14:03:50.191Z] Setting GAC to /Users/matti/.config/firebase/.._application_default_credentials.json {"metadata":{"emulator":{"name":"functions"},"message":"Setting GAC to /Users/matti/.config/firebase/.._application_default_credentials.json"}}
[2023-01-17T14:03:50.191Z] >>> [apiv2][query] GET https://firebase.googleapis.com/v1beta1/projects/bug-thunderdome/adminSdkConfig [none]
[2023-01-17T14:03:50.726Z] <<< [apiv2][status] GET https://firebase.googleapis.com/v1beta1/projects/bug-thunderdome/adminSdkConfig 200
[2023-01-17T14:03:50.726Z] <<< [apiv2][body] GET https://firebase.googleapis.com/v1beta1/projects/bug-thunderdome/adminSdkConfig {"projectId":"bug-thunderdome","storageBucket":"bug-thunderdome.appspot.com"}
[2023-01-17T14:03:50.743Z] Ignoring unsupported arg: auto_download {"metadata":{"emulator":{"name":"ui"},"message":"Ignoring unsupported arg: auto_download"}}
[2023-01-17T14:03:50.743Z] Ignoring unsupported arg: port {"metadata":{"emulator":{"name":"ui"},"message":"Ignoring unsupported arg: port"}}
[2023-01-17T14:03:50.743Z] Starting Emulator UI with command {"binary":"node","args":["/Users/matti/.cache/firebase/emulators/ui-v1.11.2/server/server.js"],"optionalArgs":[],"joinArgs":false} {"metadata":{"emulator":{"name":"ui"},"message":"Starting Emulator UI with command {\"binary\":\"node\",\"args\":[\"/Users/matti/.cache/firebase/emulators/ui-v1.11.2/server/server.js\"],\"optionalArgs\":[],\"joinArgs\":false}"}}
i  ui: Emulator UI logging to ui-debug.log {"metadata":{"emulator":{"name":"ui"},"message":"Emulator UI logging to \u001b[1mui-debug.log\u001b[22m"}}
[2023-01-17T14:03:50.823Z] Web / API server started at 127.0.0.1:4018
 {"metadata":{"emulator":{"name":"ui"},"message":"Web / API server started at 127.0.0.1:4018\n"}}
[2023-01-17T14:03:50.824Z] Web / API server started at ::1:4018
 {"metadata":{"emulator":{"name":"ui"},"message":"Web / API server started at ::1:4018\n"}}
i  functions: Watching "/Users/matti/Sources/functions-repro/functions" for Cloud Functions... {"metadata":{"emulator":{"name":"functions"},"message":"Watching \"/Users/matti/Sources/functions-repro/functions\" for Cloud Functions..."}}
[2023-01-17T14:03:51.001Z] Validating nodejs source
[2023-01-17T14:03:51.429Z] > [functions] package.json contents: {
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  "scripts": {
    "serve": "firebase emulators:start --only functions",
    "shell": "firebase functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "engines": {
    "node": "16"
  },
  "main": "index.js",
  "dependencies": {
    "firebase-admin": "^11.4.1",
    "firebase-functions": "^4.1.1"
  },
  "devDependencies": {
    "firebase-functions-test": "^3.0.0"
  },
  "private": true
}
[2023-01-17T14:03:51.429Z] Building nodejs source
[2023-01-17T14:03:51.433Z] Could not find functions.yaml. Must use http discovery
[2023-01-17T14:03:51.540Z] Serving at port 9005

[2023-01-17T14:03:51.676Z] Got response from /__/functions.yaml {"endpoints":{"helloWorld":{"platform":"gcfv1","availableMemoryMb":null,"timeoutSeconds":null,"minInstances":null,"maxInstances":null,"ingressSettings":null,"serviceAccountEmail":null,"vpc":null,"httpsTrigger":{},"entryPoint":"helloWorld"}},"specVersion":"v1alpha1","requiredAPIs":[],"params":[{"name":"RANDOM_FLOAT","type":"float"}]}
[2023-01-17T14:03:51.680Z] shutdown requested via /__/quitquitquit

⬢  functions: Failed to load function definition from source: Error: Never has a value ([object Object]). This should be impossible {"metadata":{"emulator":{"name":"functions"},"message":"Failed to load function definition from source: Error: Never has a value ([object Object]). This should be impossible"}}

┌─────────────────────────────────────────────────────────────┐
│ ✔  All emulators ready! It is now safe to connect your app. │
│ i  View Emulator UI at http://127.0.0.1:4018/               │
└─────────────────────────────────────────────────────────────┘

┌───────────┬────────────────┬─────────────────────────────────┐
│ Emulator  │ Host:Port      │ View in Emulator UI             │
├───────────┼────────────────┼─────────────────────────────────┤
│ Functions │ 127.0.0.1:5001 │ http://127.0.0.1:4018/functions │
└───────────┴────────────────┴─────────────────────────────────┘
  Emulator Hub running at 127.0.0.1:4400
  Other reserved ports: 4500

Issues? Report them at https://github.com/firebase/firebase-tools/issues and attach the *-debug.log files.

[taeold]

Hi @karvaporo - thanks for reporting the issue.

I've learned that we have not implemented the feature in the Firebase CLI to support defineFloat yet. Please keep an eye on this issue - we'll post an update here once the feature is implemented.

In the meantime, please consider using defineString and parsing it in your code:

const { defineString } = require("firebase-functions/params");

const randomFloat = defineString("RANDOM_FLOAT");

exports.helloWorld = functions.https.onRequest((request, response) => {
  functions.logger.info(Number.parseFloat(randomFloat.value()));
  response.send("Hello from Firebase!");
});

[JohnGale87]

Please can we have an update on this issue, it seems like a bug to me rather than a feature request. Is there an ETA for release?