def get_query_type(query):
    """Gets the type of query in use (email or url).

    In order to provide a proper API endpoint it is necessary to first
    determine the type of query the client is using. There are only two
    options currently: 1) domain or 2) email.

    :param query: Search query provided by client.

    """

    if URL_RE.match(query):
        query_type = 'domain'
    elif EMAIL_RE.match(query):
        query_type = 'email'
    else:
        query_type = ''

    return query_type