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 .setSession('') // The user session to authenticate with .setKey('') // .setJWT('<YOUR_JWT>'); // Your secret JSON Web Token

Databases databases = Databases(client);

Document result = await databases.upsertDocument( databaseId: '<DATABASE_ID>', collectionId: '<COLLECTION_ID>', documentId: '<DOCUMENT_ID>', );