Hello, in this tutorial, I will show you how to commit multiple Add, Update, and Delete operations.
Setup
Auth - Create Account with Email and Password
Auth - Sign In
Auth - Reset Passwords
Auth - Listening to Sign-In States
Auth - Verifying Users
Auth - Utility Nodes
Firestore - Add Documents
Firestore - Update Document
Firestore - Delete Document
Firestore - Get Document
Firestore - Get Collection
Firestore - Batch Operations
Realtime Database - Add Data
Realtime Database - Update Data
Realtime Database - Delete Data
Realtime Database - Get Data
Cloud Storage - Download File
Cloud Storage - Uploading Files
Cloud Storage - Delete File
Packaging your Project
Firestore - Batch Operations
Learn how to commit multiple Add, Update, and Delete Operations
This means that it'll try to execute multiple operations and if even 1 fails, it will roll back to the original data.
Creating the Batch
To begin executing Batch Operations, you will need to create the Batch. Use the "Begin Batch" node to start.
Then use the "Add Document Batch Operation," "Update Document Batch Operation," "Delete Document Batch Operation" nodes to add as many operations as possible you want to commit.
Committing the Batch
Once the Batch is created, use the Commit Batch node to execute all the operations.
It has 3 pins
1 for the batch operations
2 callbacks to handle executions when the process completes successfully or not
To create these callbacks, click and hold on the callback pin from the node. Then drag and let go on an empty spot on the blueprint.
Select “Add Event” then “Add Custom Event.” That will create the event node fit for the callback.
The On Batch Completed callback gets called when it successfully committed all the operations it was assigned with.
The On Fail to Complete Batch callback gets call when at least 1 operation failed. Data will be rolled back to the original when this happens.
