API Reference > Presentation-backend > Core > Presentation > initialize initialize MethodStatic Initializes Presentation library for the backend. Example: import { Presentation, PresentationManagerMode } from "@bentley/presentation-backend"; // initialize presentation-backend Presentation.initialize({ rulesetDirectories: [path.join("assets", "presentation_rules")], localeDirectories: [path.join("assets", "locales")], mode: PresentationManagerMode.ReadOnly, }); Important: The method should be called after a call to IModelHost.startup initialize(props?: PresentationProps): void Parameter Type Description props PresentationProps Optional properties for PresentationManager Returns - void Defined in presentation/backend/src/Presentation.ts Line 84 Last Updated: 13 June, 2024