appwrite/docs/examples/1.7.x/server-dotnet/examples/databases/create-relationship-attribute.md

using Appwrite; using Appwrite.Enums; using Appwrite.Models; using Appwrite.Services;

Client client = new Client() .SetEndPoint("https://.cloud.appwrite.io/v1") // Your API Endpoint .SetProject("<YOUR_PROJECT_ID>") // Your project ID .SetKey("<YOUR_API_KEY>"); // Your secret API key

Databases databases = new Databases(client);

AttributeRelationship result = await databases.CreateRelationshipAttribute( databaseId: "<DATABASE_ID>", collectionId: "<COLLECTION_ID>", relatedCollectionId: "<RELATED_COLLECTION_ID>", type: RelationshipType.OneToOne, twoWay: false, // optional key: "", // optional twoWayKey: "", // optional onDelete: RelationMutate.Cascade // optional );