I am building an extension by reading this official documentation and getting error in 4 step, while start emulator in firebase extension firebase emulators:start --project=demo-test.
Error :
C:\Users\RAJENDRA A VERMA\Desktop\Firebase Extension\rtdb-uppercase-
messages\functions\integration-tests>firebase emulators:start --project=demo-test
i emulators: Starting emulators: functions, database, extensions
i emulators: Detected demo project ID "demo-test", emulated services will use a demo configuration and attempts to access non-emulated services for this project will fail.
i emulators: Shutting down emulators.
Error: An unexpected error has occurred.
error in firebase-debug.log
[debug] [2023-08-16T15:34:36.952Z] ----------------------------------------------------------------------
[debug] [2023-08-16T15:34:36.955Z] Command: C:\Program Files\nodejs\node.exe C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\bin\firebase.js emulators:start --project=demo-test
[debug] [2023-08-16T15:34:36.956Z] CLI Version: 12.4.8
[debug] [2023-08-16T15:34:36.956Z] Platform: win32
[debug] [2023-08-16T15:34:36.957Z] Node Version: v18.16.0
[debug] [2023-08-16T15:34:36.968Z] Time: Wed Aug 16 2023 21:04:36 GMT+0530 (India Standard Time)
[debug] [2023-08-16T15:34:36.969Z] ----------------------------------------------------------------------
[debug]
[debug] [2023-08-16T15:34:37.137Z] Object ".extensions" in "firebase.json" has unknown property: {"additionalProperty":"rtdb-uppercase-messages"}
[debug] [2023-08-16T15:34:37.147Z] > 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"]
[debug] [2023-08-16T15:34:37.147Z] > authorizing via signed-in user (piccozonedevelopers@gmail.com)
[debug] [2023-08-16T15:34:37.333Z] java version "20.0.1" 2023-04-18
[debug] [2023-08-16T15:34:37.334Z] Java(TM) SE Runtime Environment (build 20.0.1+9-29)
Java HotSpot(TM) 64-Bit Server VM (build 20.0.1+9-29, mixed mode, sharing)
[debug] [2023-08-16T15:34:37.390Z] Parsed Java major version: 20
[info] i emulators: Starting emulators: functions, database, extensions {"metadata":{"emulator":{"name":"hub"},"message":"Starting emulators: functions, database, extensions"}}
[info] i emulators: Detected demo project ID "demo-test", emulated services will use a demo configuration and attempts to access non-emulated services for this project will fail. {"metadata":{"emulator":{"name":"hub"},"message":"Detected demo project ID \"demo-test\", emulated services will use a demo configuration and attempts to access non-emulated services for this project will fail."}}
[debug] [2023-08-16T15:34:37.398Z] Successfully read params from rtdb-uppercase-messages.env
[debug] [2023-08-16T15:34:37.399Z] Error: ENOENT: no such file or directory, open 'C:\Users\RAJENDRA A VERMA\Desktop\Firebase Extension\rtdb-uppercase-messages\functions\integration-tests\extensions\rtdb-uppercase-messages.env.0'
[debug] [2023-08-16T15:34:37.399Z] Error: ENOENT: no such file or directory, open 'C:\Users\RAJENDRA A VERMA\Desktop\Firebase Extension\rtdb-uppercase-messages\functions\integration-tests\extensions\rtdb-uppercase-messages.env.demo-test'
[debug] [2023-08-16T15:34:37.400Z] Error: ENOENT: no such file or directory, open 'C:\Users\RAJENDRA A VERMA\Desktop\Firebase Extension\rtdb-uppercase-messages\functions\integration-tests\extensions\rtdb-uppercase-messages.env.local'
[debug] [2023-08-16T15:34:37.419Z] [extensions] Source code valid for ../..
[info] i emulators: Shutting down emulators. {"metadata":{"emulator":{"name":"hub"},"message":"Shutting down emulators."}}
[debug] [2023-08-16T15:34:37.624Z] TypeError: Cannot read properties of undefined (reading 'filter')
at getNonSecretEnv (C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\extensions\emulator\optionsHelper.js:62:33)
at getExtensionFunctionInfo (C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\extensions\emulator\optionsHelper.js:49:26)
at async ExtensionsEmulator.toEmulatableBackend (C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\emulator\extensionsEmulator.js:146:82)
at async Promise.all (index 0)
at async ExtensionsEmulator.getExtensionBackends (C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\emulator\extensionsEmulator.js:137:25)
at async Object.startAll (C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\emulator\controller.js:209:36)
at async C:\Users\RAJENDRA A VERMA\AppData\Roaming\npm\node_modules\firebase-tools\lib\commands\emulators-start.js:32:43
[error]
[error] Error: An unexpected error has occurred.
file structure :
rtdb-uppercase-messages
├── functions
│ ├── integration-tests
│ │ ├── extensions
│ │ │ └── rtdb-uppercase-messages.env
│ │ ├── .firebaserc
│ │ ├── firebase.json
│ │ └── integration-test.spec.js
│ ├── node_modules
│ ├── index.js
│ ├── package-lock.json
│ └── package.json
├── README.md
├── PREINSTALL.md
├── POSTINSTALL.md
├── CHANGELOG.md
└── extension.yaml
in extension.yaml :
name: rtdb-uppercase-messages
version: 0.0.1
specVersion: v1beta # Firebase Extensions specification version; don't change
# Friendly display name for your extension (~3-5 words)
displayName: Convert messages to upper case
# Brief description of the task your extension performs (~1 sentence)
description: >-
Converts messages in RTDB to upper case
author:
authorName: Your Name
url: https://your-site.example.com
license: Apache-2.0 # Required license
# Public URL for the source code of your extension
sourceUrl: https://github.com/your-name/your-repo
resources:
- name: makeuppercase
type: firebaseextensions.v1beta.function
properties:
eventTrigger:
eventType: providers/google.firebase.database/eventTypes/ref.create
# DATABASE_INSTANCE (project's default instance) is an auto-populated
# parameter value. You can also specify an instance.
resource: projects/_/instances/${DATABASE_INSTANCE}/refs/messages/{pushId}/original
runtime: "nodejs18"
in firebase.json :
{
"emulators": {
"functions": {
"port": 5001
},
"ui": {
"enabled": true
},
"singleProjectMode": true,
"database": {
"port": 9000
}
},
"extensions": {
"rtdb-uppercase-messages": "../.."
}
}
Where is the mistake happening? Where am I making a mistake?
firebaser here
Sorry to hear that you ran into this - This looks like a bug with the Extensions emulator. I've opened https://github.com/firebase/firebase-tools/issues/6271 describing more details about what's happening & should have a fix out in the next release for firebase-tools.
For now, the workaround is to add a params section to the top level of your extension.yaml. It can even be empty, i.e.:
name: rtdb-uppercase-messages
version: 0.0.1
specVersion: v1beta
# Rest of your spec...
# Add any params section
params: []