sdk-for-dart/docs/examples/databases/increment-document-attribute.md

import 'package:dart_appwrite/dart_appwrite.dart';

Client client = Client() .setEndpoint('https://.cloud.appwrite.io/v1') // Your API Endpoint .setProject('<YOUR_PROJECT_ID>') // Your project ID .setSession(''); // The user session to authenticate with

Databases databases = Databases(client);

Document result = await databases.incrementDocumentAttribute( databaseId: '<DATABASE_ID>', collectionId: '<COLLECTION_ID>', documentId: '<DOCUMENT_ID>', attribute: '', value: 0, // (optional) max: 0, // (optional) transactionId: '<TRANSACTION_ID>', // (optional) );