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使用 jq 检索嵌套元素

tag-icon • tag-icon json jq
使用 jq 检索嵌套元素

我有一个 JSON 对象列表（下面给出一个对象），其中父元素将动态更改（“Oauth2”、“Oauth2c”），因此，如何检索嵌套级别元素 Ex:- “scopes”下面没有指定对象路径？

{
    "Oauth2": {
        "description": "Oauth 2.0 implicit authentication",
        "flows": {
            "implicit": {
                "authorizationUrl": "https://accounts.google.com/o/oauth2/auth",
                "scopes": {
                    "https://www.googleapis.com/auth/youtube": "Manage your YouTube account",
                    "https://www.googleapis.com/auth/youtube.channel-memberships.creator": "See a list of your current active channel members, their current level, and when they became a member",
                    "https://www.googleapis.com/auth/youtube.force-ssl": "See, edit, and permanently delete your YouTube videos, ratings, comments and captions",
                    "https://www.googleapis.com/auth/youtube.readonly": "View your YouTube account",
                    "https://www.googleapis.com/auth/youtube.upload": "Manage your YouTube videos",
                    "https://www.googleapis.com/auth/youtubepartner": "View and manage your assets and associated content on YouTube",
                    "https://www.googleapis.com/auth/youtubepartner-channel-audit": "View private information of your YouTube channel relevant during the audit process with a YouTube partner"
                }
            }
        },
        "type": "oauth2"
    },
    "Oauth2c": {
        "description": "Oauth 2.0 authorizationCode authentication",
        "flows": {
            "authorizationCode": {
                "authorizationUrl": "https://accounts.google.com/o/oauth2/auth",
                "scopes": {
                    "https://www.googleapis.com/auth/youtube": "Manage your YouTube account",
                    "https://www.googleapis.com/auth/youtube.channel-memberships.creator": "See a list of your current active channel members, their current level, and when they became a member",
                    "https://www.googleapis.com/auth/youtube.force-ssl": "See, edit, and permanently delete your YouTube videos, ratings, comments and captions",
                    "https://www.googleapis.com/auth/youtube.readonly": "View your YouTube account",
                    "https://www.googleapis.com/auth/youtube.upload": "Manage your YouTube videos",
                    "https://www.googleapis.com/auth/youtubepartner": "View and manage your assets and associated content on YouTube",
                    "https://www.googleapis.com/auth/youtubepartner-channel-audit": "View private information of your YouTube channel relevant during the audit process with a YouTube partner"
                },
                "tokenUrl": "https://accounts.google.com/o/oauth2/token"
            }
        },
        "type": "oauth2"
    }
}

答案1

scopes示例数据中的对象可通过表达式jq访问

.[].flows[].scopes

充当[]一种路径通配符。或者更确切地说，它为您提供了对象的每个部分。

鉴于您的示例数据：

$ jq '.[].flows[].scopes' file.json
{
  "https://www.googleapis.com/auth/youtube": "Manage your YouTube account",
  "https://www.googleapis.com/auth/youtube.channel-memberships.creator": "See a list of your current active channel members, their current level, and when they became a member",
  "https://www.googleapis.com/auth/youtube.force-ssl": "See, edit, and permanently delete your YouTube videos, ratings, comments and captions",
  "https://www.googleapis.com/auth/youtube.readonly": "View your YouTube account",
  "https://www.googleapis.com/auth/youtube.upload": "Manage your YouTube videos",
  "https://www.googleapis.com/auth/youtubepartner": "View and manage your assets and associated content on YouTube",
  "https://www.googleapis.com/auth/youtubepartner-channel-audit": "View private information of your YouTube channel relevant during the audit process with a YouTube partner"
}
{
  "https://www.googleapis.com/auth/youtube": "Manage your YouTube account",
  "https://www.googleapis.com/auth/youtube.channel-memberships.creator": "See a list of your current active channel members, their current level, and when they became a member",
  "https://www.googleapis.com/auth/youtube.force-ssl": "See, edit, and permanently delete your YouTube videos, ratings, comments and captions",
  "https://www.googleapis.com/auth/youtube.readonly": "View your YouTube account",
  "https://www.googleapis.com/auth/youtube.upload": "Manage your YouTube videos",
  "https://www.googleapis.com/auth/youtubepartner": "View and manage your assets and associated content on YouTube",
  "https://www.googleapis.com/auth/youtubepartner-channel-audit": "View private information of your YouTube channel relevant during the audit process with a YouTube partner"
}

你也可以使用

jq '.. | select(.scopes?).scopes' file.json

这将为您提供与上面示例文档相同的输出。这会搜索scopes其中包含密钥的任何内容，然后提取该密钥的内容。

jq可能需要使用旧版本

jq '.. | select(type == "object" and has("scopes")).scopes' file.json

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