sdk-for-swift/docs/examples/databases/decrement-document-attribute.md

import Appwrite

let 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

let databases = Databases(client)

let document = try await databases.decrementDocumentAttribute( databaseId: "<DATABASE_ID>", collectionId: "<COLLECTION_ID>", documentId: "<DOCUMENT_ID>", attribute: "", value: 0, // optional min: 0, // optional transactionId: "<TRANSACTION_ID>" // optional )