API Reference > Presentation-backend > Core > Presentation > initialize initialize MethodStatic Initializes Presentation library for the backend. Example: import { RequestPriority } from "@bentley/presentation-common"; import { Presentation, PresentationManagerMode } from "@bentley/presentation-backend"; import rpcs from "../common/Rpcs"; // initialize presentation-backend Presentation.initialize({ rulesetDirectories: [path.join("assets", "presentation_rules")], localeDirectories: [path.join("assets", "locales")], mode: PresentationManagerMode.ReadWrite, taskAllocationsMap: { [RequestPriority.Max]: 1, }, useMmap: true, updatesPollInterval: 20, }); 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-backend/Presentation.ts Line 107 Last Updated: 11 June, 2024