sdk-for-swift/docs/examples/databases/create-operations.md

import Appwrite

let client = Client()
    .setEndpoint("https://<REGION>.cloud.appwrite.io/v1") // Your API Endpoint
    .setProject("<YOUR_PROJECT_ID>") // Your project ID
    .setKey("<YOUR_API_KEY>") // Your secret API key

let databases = Databases(client)

let transaction = try await databases.createOperations(
    transactionId: "<TRANSACTION_ID>",
    operations: [
	    {
	        "action": "create",
	        "databaseId": "<DATABASE_ID>",
	        "collectionId": "<COLLECTION_ID>",
	        "documentId": "<DOCUMENT_ID>",
	        "data": {
	            "name": "Walter O'Brien"
	        }
	    }
	] // optional
)