Initialized
EventFirebase is ready. Call GetToken to receive. If ServiceAccountJson was set, SendToToken and SendToTopic are ready too.
Extensions
MIT App Inventor
Kodular
Niotron
Android Builder
Thunkable
FcmPush
Firebase Cloud Messaging push notifications: device tokens, topics, tray notifications, tap handling, and optional HTTP v1 sending.
23 September 2026v1.0
$7.99
Tools
About
FcmPush uses the official Firebase Messaging SDK. Paste your google-services.json (or ApiKey, ApplicationId and ProjectId) and call Initialize. The extension registers a device token, subscribes to topics, shows tray notifications, and reports taps. Set ServiceAccountJson before Initialize when this app should also send; SendToToken and SendToTopic then use that key. Keep the service account in an admin app you control, not in the app your users install. Data messages that arrive while the app is closed are queued and delivered on the next Screen.Initialize. Android 5.0 (API 21) or newer, with Google Play services.
Features
- Official Firebase Messaging SDK, configured at runtime — no google-services Gradle plugin
- Initialize from designer keys or the full google-services.json text
- Service account is checked during Initialize, then SendToToken and SendToTopic use it
- Device token, token refresh, and delete
- Subscribe and unsubscribe to topics
- Tray notifications in the foreground and for data messages while the app is closed
- NotificationOpened when the user taps a push, including messages Android drew in the background
- Android 13 notification permission block
- Optional HTTP v1 send to a token or a topic from an admin app
- Android 5.0 (API 21) or newer
Documentation
Firebase Cloud Messaging on the device: tokens, topics, tray notifications, tap handling, and sending. Set ApiKey, ApplicationId and ProjectId (or paste google-services.json). Set ServiceAccountJson too if this app should send, then call Initialize. SendToToken and SendToTopic use that key. Keep the service account in an admin app you control.
GotToken
EventThe device token. Save it on your server or database to send pushes to this device.
| Parameter | Type |
|---|---|
| token | text |
TokenRefreshed
EventFirebase issued a new token (first launch, reinstall, or rotation). Update it on your server.
| Parameter | Type |
|---|---|
| token | text |
TokenDeleted
EventThe token was deleted.
TopicSubscribed
EventThe device is subscribed to the topic.
| Parameter | Type |
|---|---|
| topic | text |
TopicUnsubscribed
EventThe device is unsubscribed from the topic.
| Parameter | Type |
|---|---|
| topic | text |
PermissionResult
EventResult of RequestNotificationPermission.
| Parameter | Type |
|---|---|
| granted | boolean |
MessageReceived
EventA push arrived. data is a dictionary of the message's data keys. whileClosed is true for data messages that arrived while no screen was open and are delivered now.
| Parameter | Type |
|---|---|
| messageId | text |
| from | text |
| title | text |
| body | text |
| data | dictionary |
| whileClosed | boolean |
NotificationOpened
EventThe user tapped a push notification and the app opened. title and body are empty for notifications Android drew while the app was in the background; data is always filled.
| Parameter | Type |
|---|---|
| messageId | text |
| title | text |
| body | text |
| data | dictionary |
MessageSent
EventFCM accepted the message. messageName looks like projects/PROJECT/messages/MESSAGE.
| Parameter | Type |
|---|---|
| messageName | text |
ErrorOccurred
EventSomething failed. action is the block that failed; message says why.
| Parameter | Type |
|---|---|
| action | text |
| message | text |
Blocks
Compatible platforms
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