Consume URI using site config.

def consumer(site, uri):
    """Consume URI using site config."""
    config = load_site_config(site)
    model = _get_model('consume', config, uri)
    consumestore = get_consumestore(
        model=model,
        method=_config.get('storage', 'file'),
        bucket=_config.get('s3_data_bucket', None)
    )
    consumestore.save_media()
    consumestore.save_data()