A service manager interface.

interface IManager {
    builder: Builder.IManager;
    connectionFailure: ISignal<ServiceManager.IManager, Error>;
    contents: Contents.IManager;
    events: Event.IManager;
    isDisposed: boolean;
    isReady: boolean;
    kernels: Kernel.IManager;
    kernelspecs: KernelSpec.IManager;
    nbconvert: NbConvert.IManager;
    ready: Promise<void>;
    serverSettings: ServerConnection.ISettings;
    sessions: Session.IManager;
    settings: Setting.IManager;
    terminals: Terminal.IManager;
    user: User.IManager;
    workspaces: Workspace.IManager;
    dispose(): void;


Implemented by


builder: Builder.IManager

The builder for the manager.


will be removed in JupyterLab v5

connectionFailure: ISignal<ServiceManager.IManager, Error>

A signal emitted when there is a connection failure with the server.

contents: Contents.IManager

The contents manager for the manager.

events: Event.IManager

The events service manager.

isDisposed: boolean

Test whether the object has been disposed.


This property is always safe to access.

isReady: boolean

Test whether the manager is ready.

kernels: Kernel.IManager

The kernel manager of the manager.

kernelspecs: KernelSpec.IManager

The kernelspec manager for the manager.

nbconvert: NbConvert.IManager

The nbconvert manager for the manager.

ready: Promise<void>

A promise that fulfills when the manager is initially ready.

serverSettings: ServerConnection.ISettings

The server settings of the manager.

sessions: Session.IManager

The session manager for the manager.

settings: Setting.IManager

The setting manager for the manager.

terminals: Terminal.IManager

The terminals manager for the manager.

The user manager for the manager.

workspaces: Workspace.IManager

The workspace manager for the manager.


  • Dispose of the resources held by the object.


    If the object's dispose method is called more than once, all calls made after the first will be a no-op.

    Undefined Behavior

    It is undefined behavior to use any functionality of the object after it has been disposed unless otherwise explicitly noted.

    Returns void