API Reference > imodeljs-frontend > IModelConnection > CheckpointConnection > open open MethodStatic Deprecated use openRemote Open a CheckpointConnection to a checkpoint of an iModel. open(contextId: string, iModelId: string, openMode: OpenMode = OpenMode.Readonly, version: IModelVersion = ...): Promise<CheckpointConnection> note this function will be removed in a future release to remove the openMode argument. All CheckpointConnections must be readonly. If you're using a writeable connection, your application must use IpcApp/IpcHost and BriefcaseConnection. Parameter Type Description contextId string iModelId string openMode OpenMode version IModelVersion Returns - Promise<CheckpointConnection> Defined in core/frontend/src/CheckpointConnection.ts Line 54 Last Updated: 12 June, 2024