Thunkable for Android

Firebase DB


Firebase DB is service that stores a single row of data in the cloud, similar to Tiny Web DB, except that it can be secured by creating your own private database with Firebase.

The sample app Thunkable Messaging uses a Firebase DB as a backend for person to person messaging


Set Up

No set-up is required since Thunkable provides a default account for users to get started quickly. Once you're app is ready for prime time, we do recommend that you create your own private database for free with Firebase.

To create your own database with Firebase, please visit this link and follow the steps below.

  1. Create a new database by Adding a new project
  2. Go to the 'Database' option on the left and copy and paste the Firebase URL to your Thunkable component
  3. Set the database 'read' and 'write' rules to 'true'
Property Description
Firebase URL Thunkable provides its own url by default so that users can get started quickly. For apps you intend to share with others, we highly recommend creating you own private database with Firebase and adding in your url
Firebase Token DO NOT CHANGE. This is the token used to authenticate your app. It will be generated by default, so you should not change it
Project Bucket Gets the Project Bucket name for this Firebase DB. This field is given a default name. If you are using the default Firebase database, make sure to change it to something unique so it reduces the chance of conflict with another user
Use Default If checked, uses the default Firebase URL provided by Thunkable
Persist If checked, variables will retain their values when off-line and the App exits. Values will be uploaded to Firebase the next time the App is run while connected to the network. This is useful for applications which will gather data while not connected to the network. AppendValue and RemoveFirst will not work correctly when off-line, they require a network connection

Send chat message using Firebase as a real-time backend


Load images from image urls stored in Firebase


Store and Retrieve Data

Event Description
Store Value (tag, valueToStore) Asks Firebase to store the given value under the given tag
Data Changed (tag, value) Indicates that the data in the Firebase has changed. Launches an event with the tag and value that have been updated
Get Value (tag, valueIfTagNotThere) GetValue asks Firebase to get the value stored under the given tag. It will pass valueIfTagNotThere to GotValue if there is no value stored under the tag
Got Value (tag, value) Indicates that a GetValue request has succeeded
Get TagList Get the list of tags for this application. When complete a "TagList" event will be triggered with the list of known tags
Tag List (value) Event triggered when we have received the list of known tags. Used with the "GetTagList" Function
Clear Tag (tag) Remove the tag from Firebase
Remove First (tag) Return the first element of a list and atomically remove it. If two devices use this function simultaneously, one will get the first element and the the other will get the second element, or an error if there is no available element. When the element is available, the "FirstRemoved" event will be triggered
First Removed (value) Event triggered by the "RemoveFirst" function. The argument "value" is the object that was the first in the list, and which is now removed
Append Value (tag, valueToAdd) Append a value to the end of a list atomically. If two devices use this function simultaneously, both will be appended and no data lost
Firebase Error (message) Indicates an error with communicating with Firebase
Unauthenticate For testing purposes only. If you are having difficulty with Thunkable Live and you are switching between different Firebase accounts, you may need to use this function to clear internal Firebase caches. You can just use the "Do It" function on this block in the blocks editor

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