https://app.rakuten.co.jp/services/api/IchibaItem/Search/20220601?applicationId=b81babe0dea9170ecdaf3c019d8709b6&affiliateId=0433111a.0d75cb85.0433111b.a7f1907e&keyword=%E3%81%82%E3%82%81%E7%8E%89%E3%81%AD%E3%81%98%E3%82%8A%E7%AE%B8+2%E8%86%B3%E3%82%BB%E3%83%83%E3%83%88%28%E9%A3%9F%E6%B4%97%E6%A9%9F%E5%AF%BE%E5%BF%9C%29+%E2%96%A0%E3%82%AB%E3%83%A9%E3%83%BC%EF%BC%9AB%28%E7%B4%AB%2F%E9%BB%84%29&format=json&formatVersion=2&hits=10&page=1&sort=standard

URL_rss=XMLを見てみる。

stdClass Object
(
    [GenreInformation] => Array
        (
        )

    [Items] => Array
        (
        )

    [TagInformation] => Array
        (
        )

    [carrier] => 0
    [count] => 0
    [first] => 0
    [hits] => 0
    [last] => 0
    [page] => 1
    [pageCount] => 0
)