API Reference > imodeljs-frontend > Extensions > ExtensionServiceExtensionLoader ExtensionServiceExtensionLoader Class Beta Downloads extensions from Extension Service Implements ExtensionLoader Methods Name Description constructor(_contextId: string): ExtensionServiceExtensionLoader getExtensionName(extensionRoot: string): string loadExtension(extensionName: string, extensionVersion?: string, args?: string[]): Promise<undefined | PendingExtension> resolveResourceUrl(extensionName: string, relativeFileName: string): string Defined in core/frontend/src/extension/loaders/ExtensionServiceExtensionLoader.ts Line 19 Last Updated: 29 November, 2022