def _url_info(name):
    """
    Compose the URL for a json-file with information about the datasets.

    :param name: Name of the information e.g. 'datasets' or 'columns'.
    :return: String with the full URL.
    """

    url = 'https://simfin.com/api/bulk_info/{0}.php'
    url = url.format(name)
    return url