sdk-for-flutter/docs/examples/databases/upsert-document.md

import 'package:appwrite/appwrite.dart';

Client client = Client() .setEndpoint('https://.cloud.appwrite.io/v1') // Your API Endpoint .setProject('<YOUR_PROJECT_ID>'); // Your project ID

Databases databases = Databases(client);

Document result = await databases.upsertDocument( databaseId: '<DATABASE_ID>', collectionId: '<COLLECTION_ID>', documentId: '<DOCUMENT_ID>', data: {}, permissions: ["read("any")"], // optional );