API Reference > extension-client > ExtensionService > ExtensionClient ExtensionClient Class Beta Client for querying, publishing and deleting iModel.js Extensions. The imodel-extension-service-api OIDC scope is required for all operations and the imodel-extension-service:modify is required for modification operations (modify, publish, and deleting). Extends Client Methods Name Description constructor(): ExtensionClient deleteExtension(requestContext: AuthorizedClientRequestContext, contextId: string, extensionName: string, version?: string): Promise<void> Deletes an extension from extension service downloadExtension(requestContext: AuthorizedClientRequestContext, contextId: string, extensionName: string, version: string): Promise<ExtensionFile[]> Downloads an extension getExtensionProps(requestContext: AuthorizedClientRequestContext, contextId: string, extensionName: string, version: string): Promise<undefined | ExtensionProps> Gets information about an extension's specific version getExtensions(requestContext: AuthorizedClientRequestContext, contextId: string, extensionName?: string): Promise<ExtensionProps[]> Gets information on extensions. getUrl(requestContext: ClientRequestContext): Promise<string> Inherited methods Name Inherited from Description applyUserConfiguredHttpRequestOptions(requestOptions: RequestOptions, userDefinedRequestOptions?: HttpRequestOptions): void Protected Client Configures request options based on user defined values in HttpRequestOptions delete(requestContext: AuthorizedClientRequestContext, relativeUrlPath: string, httpRequestOptions?: HttpRequestOptions): Promise<void> Protected Client used by clients to send delete requests setupOptionDefaults(options: RequestOptions): Promise<void> Protected Client Augments request options with defaults returned by the DefaultRequestOptionsProvider. Inherited properties Name Type Inherited from Description _url Protected undefined | string Client baseUrl Protected undefined | string Client Sets the default base URL to use with this client. Defined in extension/src/ExtensionClient.ts Line 24 Last Updated: 29 November, 2022