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tiktokでogp相当の情報をAPIで取得する(ruby)

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tiktokのスクレイピングをしてogp情報をとってくる処理を書いていたのだがいつのまにか下記のようにstatus code1000で弾かれるようになってしまっていた。

[25] pry(main)> html = open(movie_url) do |f| f.read; end
=> "{\"statusCode\":10000,\"verifyConfig\":{\"code\":10000,\"type\":\"verify\",\"subtype\":\"slide\",\"fp\":\"verify_5f101e29a0ad54278347a24437cfcb93\",\"region\":\"sg\",\"detail\":\"2SdJGObfW85-lX4dEGohkmh8YbPmZYiXwIh1pqrEUuohsJqr4t3XjgXHtkBHWheNJbj4MB*CVwF1ayKFmhUFcJY2yAgBxyatF0XXzv0*xk*DmEz7Og6oE0nS1mFuZXdkJE*Z05uOnCgTkh4d4yy7xfv6EiiQJGBxdHDxp21vXCZjphcNMaY6YoCrq-5wRulWVle0lP3RJyqJQUFbtIP8pH0LICH8SRGn9a6mItvTEiEwiHCfJHBxhTUf1kFCYkGm1gBpVE1s45qbaNPeVELCCU0732nlU1VLR7Jm16yTIne64NABwJSaXFAl19NrjsfHrV-Cxq*d4kuVUBERzDIIncNGgQ3m6MLdwGLw*H4xfl94O1LId2V5zlOltVL1gYtral9VUYNMskUBWclUpWt2zrUfpbVzuUg.\"}}"

どうしようかなと思ったが、調べてみたらTikTokのAPIでogp相当の情報をとってこれるようだったので、apiを通して取得してくるように修正した。ドキュメントもあるので別に何も大変なことはない。

https://www.tiktok.com/oembed?url=https://www.tiktok.com/@scout2015/video/6718335390845095173

このような形で情報を取得したいtiktokのURLをurlパラメータに渡してhttps://www.tiktok.com/oembed を叩くだけでいい。そうすると下記のようなレスポンスが返ってくる。

{
  "version": "1.0",
  "type": "video",
  "title": "Scramble up ur name & I’ll try to guess it😍❤️ #foryoupage #petsoftiktok #aesthetic",
  "author_url": "https://www.tiktok.com/@scout2015",
  "author_name": "Scout & Suki",
  "width": "100%",
  "height": "100%",
  "html": "<blockquote class=\"tiktok-embed\" cite=\"https://www.tiktok.com/@scout2015/video/6718335390845095173\" data-video-id=\"6718335390845095173\" style=\"max-width: 605px;min-width: 325px;\" > <section> <a target=\"_blank\" title=\"@scout2015\" href=\"https://www.tiktok.com/@scout2015\">@scout2015</a> <p>Scramble up ur name & I’ll try to guess it😍❤️ <a title=\"foryoupage\" target=\"_blank\" href=\"https://www.tiktok.com/tag/foryoupage\">#foryoupage</a> <a title=\"petsoftiktok\" target=\"_blank\" href=\"https://www.tiktok.com/tag/petsoftiktok\">#petsoftiktok</a> <a title=\"aesthetic\" target=\"_blank\" href=\"https://www.tiktok.com/tag/aesthetic\">#aesthetic</a></p> <a target=\"_blank\" title=\"♬ original sound - 𝐇𝐚𝐰𝐚𝐢𝐢𓆉\" href=\"https://www.tiktok.com/music/original-sound-6689804660171082501\">♬ original sound - 𝐇𝐚𝐰𝐚𝐢𝐢𓆉</a> </section> </blockquote> <script async src=\"https://www.tiktok.com/embed.js\"></script>",
  "thumbnail_width": 720,
  "thumbnail_height": 1280,
  "thumbnail_url": "https://p16.muscdn.com/obj/tos-maliva-p-0068/06kv6rfcesljdjr45ukb0000d844090v0200010605",
  "provider_url": "https://www.tiktok.com",
  "provider_name": "TikTok"
}

コード(ruby)

uri = URI.parse("https://www.tiktok.com/oembed?url=#{params[:tiktok_url]}")
response = Net::HTTP.get_response(uri)
res_json = JSON.parse(response.body)
html_doc = res_json["html"]
title = res_json["title"]
ogp_image = res_json["thumbnail_url"]
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