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社区首页 >问答首页 >如何使用jq从github api中提取信息字段

问如何使用jq从github api中提取信息字段
EN

Unix & Linux用户
提问于 2021-03-03 08:59:42
回答 1查看 1.6K关注 0票数 2

我正在尝试使用它的API提取一些关于github存储库的信息，显然jq是可行的。我可以使用这个命令查看所有可用的信息：

代码语言：javascript
复制
curl 'https://api.github.com/repos/tmux-plugins/tpm' | jq

输出：

代码语言：javascript
复制
{
  "id": 19935788,
  "node_id": "MDEwOlJlcG9zaXRvcnkxOTkzNTc4OA==",
  "name": "tpm",
  "full_name": "tmux-plugins/tpm",
  "private": false,
  "owner": {
    "login": "tmux-plugins",
    "id": 8289877,
    "node_id": "MDEyOk9yZ2FuaXphdGlvbjgyODk4Nzc=",
    "avatar_url": "https://avatars.githubusercontent.com/u/8289877?v=4",
    "gravatar_id": "",
    "url": "https://api.github.com/users/tmux-plugins",
    "html_url": "https://github.com/tmux-plugins",
    "followers_url": "https://api.github.com/users/tmux-plugins/followers",
    "following_url": "https://api.github.com/users/tmux-plugins/following{/other_user}",
    "gists_url": "https://api.github.com/users/tmux-plugins/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/tmux-plugins/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/tmux-plugins/subscriptions",
    "organizations_url": "https://api.github.com/users/tmux-plugins/orgs",
    "repos_url": "https://api.github.com/users/tmux-plugins/repos",
    "events_url": "https://api.github.com/users/tmux-plugins/events{/privacy}",
    "received_events_url": "https://api.github.com/users/tmux-plugins/received_events",
    "type": "Organization",
    "site_admin": false
  },
  "html_url": "https://github.com/tmux-plugins/tpm",
  "description": "Tmux Plugin Manager",
  "fork": false,
  "url": "https://api.github.com/repos/tmux-plugins/tpm",
  "forks_url": "https://api.github.com/repos/tmux-plugins/tpm/forks",
  "keys_url": "https://api.github.com/repos/tmux-plugins/tpm/keys{/key_id}",
  "collaborators_url": "https://api.github.com/repos/tmux-plugins/tpm/collaborators{/collaborator}",
  "teams_url": "https://api.github.com/repos/tmux-plugins/tpm/teams",
  "hooks_url": "https://api.github.com/repos/tmux-plugins/tpm/hooks",
  "issue_events_url": "https://api.github.com/repos/tmux-plugins/tpm/issues/events{/number}",
  "events_url": "https://api.github.com/repos/tmux-plugins/tpm/events",
  "assignees_url": "https://api.github.com/repos/tmux-plugins/tpm/assignees{/user}",
  "branches_url": "https://api.github.com/repos/tmux-plugins/tpm/branches{/branch}",
  "tags_url": "https://api.github.com/repos/tmux-plugins/tpm/tags",
  "blobs_url": "https://api.github.com/repos/tmux-plugins/tpm/git/blobs{/sha}",
  "git_tags_url": "https://api.github.com/repos/tmux-plugins/tpm/git/tags{/sha}",
  "git_refs_url": "https://api.github.com/repos/tmux-plugins/tpm/git/refs{/sha}",
  "trees_url": "https://api.github.com/repos/tmux-plugins/tpm/git/trees{/sha}",
  "statuses_url": "https://api.github.com/repos/tmux-plugins/tpm/statuses/{sha}",
  "languages_url": "https://api.github.com/repos/tmux-plugins/tpm/languages",
  "stargazers_url": "https://api.github.com/repos/tmux-plugins/tpm/stargazers",
  "contributors_url": "https://api.github.com/repos/tmux-plugins/tpm/contributors",
  "subscribers_url": "https://api.github.com/repos/tmux-plugins/tpm/subscribers",
  "subscription_url": "https://api.github.com/repos/tmux-plugins/tpm/subscription",
  "commits_url": "https://api.github.com/repos/tmux-plugins/tpm/commits{/sha}",
  "git_commits_url": "https://api.github.com/repos/tmux-plugins/tpm/git/commits{/sha}",
  "comments_url": "https://api.github.com/repos/tmux-plugins/tpm/comments{/number}",
  "issue_comment_url": "https://api.github.com/repos/tmux-plugins/tpm/issues/comments{/number}",
  "contents_url": "https://api.github.com/repos/tmux-plugins/tpm/contents/{+path}",
  "compare_url": "https://api.github.com/repos/tmux-plugins/tpm/compare/{base}...{head}",
  "merges_url": "https://api.github.com/repos/tmux-plugins/tpm/merges",
  "archive_url": "https://api.github.com/repos/tmux-plugins/tpm/{archive_format}{/ref}",
  "downloads_url": "https://api.github.com/repos/tmux-plugins/tpm/downloads",
  "issues_url": "https://api.github.com/repos/tmux-plugins/tpm/issues{/number}",
  "pulls_url": "https://api.github.com/repos/tmux-plugins/tpm/pulls{/number}",
  "milestones_url": "https://api.github.com/repos/tmux-plugins/tpm/milestones{/number}",
  "notifications_url": "https://api.github.com/repos/tmux-plugins/tpm/notifications{?since,all,participating}",
  "labels_url": "https://api.github.com/repos/tmux-plugins/tpm/labels{/name}",
  "releases_url": "https://api.github.com/repos/tmux-plugins/tpm/releases{/id}",
  "deployments_url": "https://api.github.com/repos/tmux-plugins/tpm/deployments",
  "created_at": "2014-05-19T09:18:38Z",
  "updated_at": "2021-03-03T04:30:43Z",
  "pushed_at": "2021-02-23T11:07:55Z",
  "git_url": "git://github.com/tmux-plugins/tpm.git",
  "ssh_url": "git@github.com:tmux-plugins/tpm.git",
  "clone_url": "https://github.com/tmux-plugins/tpm.git",
  "svn_url": "https://github.com/tmux-plugins/tpm",
  "homepage": null,
  "size": 204,
  "stargazers_count": 6861,
  "watchers_count": 6861,
  "language": "Shell",
  "has_issues": true,
  "has_projects": true,
  "has_downloads": true,
  "has_wiki": true,
  "has_pages": false,
  "forks_count": 251,
  "mirror_url": null,
  "archived": false,
  "disabled": false,
  "open_issues_count": 79,
  "license": {
    "key": "mit",
    "name": "MIT License",
    "spdx_id": "MIT",
    "url": "https://api.github.com/licenses/mit",
    "node_id": "MDc6TGljZW5zZTEz"
  },
  "forks": 251,
  "open_issues": 79,
  "watchers": 6861,
  "default_branch": "master",
  "temp_clone_token": null,
  "organization": {
    "login": "tmux-plugins",
    "id": 8289877,
    "node_id": "MDEyOk9yZ2FuaXphdGlvbjgyODk4Nzc=",
    "avatar_url": "https://avatars.githubusercontent.com/u/8289877?v=4",
    "gravatar_id": "",
    "url": "https://api.github.com/users/tmux-plugins",
    "html_url": "https://github.com/tmux-plugins",
    "followers_url": "https://api.github.com/users/tmux-plugins/followers",
    "following_url": "https://api.github.com/users/tmux-plugins/following{/other_user}",
    "gists_url": "https://api.github.com/users/tmux-plugins/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/tmux-plugins/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/tmux-plugins/subscriptions",
    "organizations_url": "https://api.github.com/users/tmux-plugins/orgs",
    "repos_url": "https://api.github.com/users/tmux-plugins/repos",
    "events_url": "https://api.github.com/users/tmux-plugins/events{/privacy}",
    "received_events_url": "https://api.github.com/users/tmux-plugins/received_events",
    "type": "Organization",
    "site_admin": false
  },
  "network_count": 251,
  "subscribers_count": 83
}
  1. 我该如何提取“描述”呢？
  2. 如何提取“语言”和“描述”？

我问第二个问题，因为我在网上看到了一些例子(当我试图为自己找到答案时)，它显示多个字段在一个中被提取，这将有助于我和其他人找到这个问题。谢谢!

jq
api
shell
curl
json
EN

回答 1

Unix & Linux用户

回答已采纳

发布于 2021-03-03 09:20:02

在以下所有情况下，file.json都是包含JSON文档的文件的名称。显然，您可以像在问题中那样使用jq，并将其从连接到curl输出的管道中读取。

一个接一个地拔出所需的字段：

代码语言：javascript
复制
$ jq -r '.description' file.json
Tmux Plugin Manager
$ jq -r '.language' file.json
Shell

上面(和下面)使用-r选项获取“原始数据”，而不是JSON编码的数据。

同时获得这两个字符(如果其中任何一个包含嵌入的换行符，则会出现区分它们的问题)：

代码语言：javascript
复制
$ jq -r '.language, .description' file.json
Shell
Tmux Plugin Manager

将它们作为CSV记录(将被正确引用，以便嵌入的逗号和换行符将被CSV解析器解析，嵌入的双引号也将被CSV编码)：

代码语言：javascript
复制
$ jq -r '[.language, .description] | @csv' file.json
"Shell","Tmux Plugin Manager"

制表符分隔(嵌入的换行符和制表符将分别显示为\n和\t )：

代码语言：javascript
复制
$ jq -r '[.language, .description] | @tsv' file.json
Shell   Tmux Plugin Manager

让jq生成包含两个变量赋值的shell代码。对于shell，这些值将被正确引用。

代码语言：javascript
复制
$ jq -r '@sh "lang=\(.language)", @sh "desc=\(.description)"' file.json
lang='Shell'
desc='Tmux Plugin Manager'

让shell实际计算以下语句：

代码语言：javascript
复制
$ eval "$( jq -r '@sh "lang=\(.language)", @sh "desc=\(.description)"' file.json )"
$ printf 'lang is "%s" and desc is "%s"\n' "$lang" "$desc"
lang is "Shell" and desc is "Tmux Plugin Manager"
票数 10
EN
页面原文内容由Unix & Linux提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://unix.stackexchange.com/questions/637319

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