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从curl返回的JSON文档中提取值

tag-icon • tag-icon curl json
从curl返回的JSON文档中提取值

命令

curl "https://tools.keycdn.com/geo.json?host={18.205.6.240}"

返回以下 JSON 文档：

{"status":"success","description":"Data successfully received.","data":{"geo":{"host":"18.205.6.240","ip":"18.205.6.240","rdns":"ec2-18-205-6-240.compute-1.amazonaws.com","asn":14618,"isp":"AMAZON-AES","country_name":"United States","country_code":"US","region_name":"Virginia","region_code":"VA","city":"Ashburn","postal_code":"20149","continent_name":"North America","continent_code":"NA","latitude":39.0469,"longitude":-77.4903,"metro_code":511,"timezone":"America\/New_York","datetime":"2022-06-17 10:44:39"}}}

在此输出中，我需要提取country_name.我不知道该怎么做。

答案1

$ curl -s 'https://tools.keycdn.com/geo.json?host={18.205.6.240}' | jq -r '.data.geo.country_name'
United States

该jq表达式.data.geo.country_name提取从您使用 访问的端点返回的 JSON 文档中的给定项目curl。

答案2

如果您也可以使用以下版本：下面是 REST API 输出：

{
  "error": "none",
  "message": "Success",
  "data": {
    "name": "Vishal Biradar",
    "userId": 1,
  }
}

下面是显示我们如何读取它的脚本代码。

#!/bin/bash
LOGIN_DATA=$(\
    curl -d "[email protected]&password=abcd123" \
    http://localhost:1234/login \
    | python -c "import sys, json; print json.load(sys.stdin)['data']['name']"\
)
echo "LOGIN_DATA=$LOGIN_DATA"

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