bokeh.server.server — Anaconda Enterprise 4.4 documentation

Anaconda Enterprise: Documentation

# bokeh.server.server

Provide basic Bokeh server objects that use a Tornado `HTTPServer` and `BokeTornado` Tornado Application to service Bokeh Server Applications. There are two public classes in this module:

`BaseServer`
  This is a lightweight class to explicitly coordinate the components needed to run a Bokeh server (A `BokehTornado` instance, and Tornado `HTTPServer` and a Tornado `IOLoop`)
`Server`
  This higher-level convenience class only needs to be configured with Bokeh `Application` instances, and will automatically create and coordinate the lower level Tornado components.

class `bokeh.server.server.` `BaseServer`(io_loop, tornado_app, http_server)

  Explicitly coordinate the level Tornado components required to run a Bokeh server:

  - A Tornado `IOLoop` to run the Bokeh server machinery.
  - a `BokehTornado` Tornado application that defines the Bokeh server machinery.
  - a Tornado `HTTPServer` to direct HTTP requests

  All three of these components must be passed to `BaseServer`, which will initialize the `BokehTornado` instance on the `io_loop`. The `http_server` must have been previously created and initialized with the `BokehTornado` instance.

  `get_session`(app_path, session_id)

    Get an active a session by name application path and session ID.

    Parameters: | app_path (str) – The configured application path for the application to return a session for. session_id (str) – The session ID of the session to retrieve.
    Returns: | ServerSession

  `get_sessions`(app_path=None)

    Gets all currently active sessions for applications.

    Parameters: | app_path (str, optional) – The configured application path for the application to return sessions for. If None, return active sessions for all applications. (default: None)
    Returns: | list[ServerSession]

  `run_until_shutdown`()

    Run the Bokeh Server until shutdown is requested by the user, either via a Keyboard interrupt (Ctrl-C) or SIGTERM.

    Calling this method will start the Tornado `IOLoop` and block all execution in the calling process.

    Returns: | None

  `show`(app_path, browser=None, new='tab')

    Opens an app in a browser window or tab.

    This method is useful for testing or running Bokeh server applications on a local machine but should not call when running Bokeh server for an actual deployment.

    Parameters: | app_path (str) – the app path to open The part of the URL after the hostname:port, with leading slash. browser (str, optional) – browser to show with (default: None) For systems that support it, the browser argument allows specifying which browser to display in, e.g. “safari”, “firefox”, “opera”, “windows-default” (see the `webbrowser` module documentation in the standard lib for more details). new (str, optional) – window or tab (default: “tab”) If `new` is ‘tab’, then opens a new tab. If `new` is ‘window’, then opens a new window.
    Returns: | None

  `start`()

    Install the Bokeh Server and its background tasks on a Tornado `IOLoop`.

    This method does not block and does not affect the state of the Tornado `IOLoop` You must start and stop the loop yourself, i.e. this method is typically useful when you are already explicitly managing an `IOLoop` yourself.

    To start a Bokeh server and immediately “run forever” in a blocking manner, see `run_until_shutdown()`.

  `stop`(wait=True)

    Stop the Bokeh Server.

    This stops and removes all Bokeh Server `IOLoop` callbacks, as well as stops the `HTTPServer` that this instance was configured with.

    Parameters: | fast (bool) – Whether to wait for orderly cleanup (default: True)
    Returns: | None

  `unlisten`()

    Stop listening on ports. The server will no longer be usable after calling this function.

    Returns: | None

  `io_loop`

    The Tornado `IOLoop` that this Bokeh Server is running on.

class `bokeh.server.server.` `Server`(applications, io_loop=None, http_server_kwargs=None, **kwargs)

  A high level convenience class to run a Bokeh server.

  This class can automatically coordinate the three the base level components required to run a Bokeh server:

  - A Tornado `IOLoop` to run the Bokeh server machinery.
  - a `BokehTornado` Tornado application that defines the Bokeh server machinery.
  - a Tornado `HTTPServer` to direct HTTP requests

  This high level `Server` class has some limitations. In particular, it is not possible to set an explicit `io_loop` and `num_procs` other than 1 at the same time. To do that, it is necessary to use `BaseServer` and coordinate the three components above explicitly.

  `address`

    The configured address that the server listens on for HTTP requests.

  `port`

    The configured port number that the server listens on for HTTP requests.

  `prefix`

    The configured URL prefix to use for all Bokeh server paths.