# REST server

Mailman is controllable through an administrative REST HTTP server.

    >>> from mailman.testing import helpers
    >>> master = helpers.TestableMaster(helpers.wait_for_webservice)
    >>> master.start('rest')

The RESTful server can be used to access basic version information.

    >>> dump_json('http://localhost:9001/3.1/system')
    api_version: 3.1
    http_etag: "..."
    mailman_version: GNU Mailman 3...
    python_version: ...
    self_link: http://localhost:9001/3.1/system/versions

Previous versions of the REST API can also be accessed.

    >>> dump_json('http://localhost:9001/3.0/system')
    api_version: 3.0
    http_etag: "..."
    mailman_version: GNU Mailman 3...
    python_version: ...
    self_link: http://localhost:9001/3.0/system/versions

## Clean up

    >>> master.stop()