无法在Shell脚本中使用jq提取JSON数组值 [英] Unable to fetch the JSON array values using jq in shell script

问题描述

我正在尝试从下面的JSON文件中获取密钥:

I'm trying to get the Key from the below JSON file:

我刚刚执行了以下命令，它将给出以下JSON输出

I just executed the below command which will give the below JSON output

命令:

jq -r '.issues'

输出:

"issues": [
    {
      "expand": "operations,versionedRepresentations,editmeta,changelog,renderedFields",
      "id": "1999875",
      "self": "https://amazon.kindle.com/jira/rest/api/2/issue/1999875",
      "key": "KINDLEAMZ-67578"
    },
    {
      "expand": "operations,versionedRepresentations,editmeta,changelog,renderedFields",
      "id": "2019428",
      "self": "https://amazon.kindle.com/jira/rest/api/2/issue/2019428",
      "key": "KINDLEAMZ-68661"
    },
    {
      "expand": "operations,versionedRepresentations,editmeta,changelog,renderedFields",
      "id": "2010958",
      "self": "https://amazon.kindle.com/jira/rest/api/2/issue/2010958",
      "key": "KINDLEAMZ-68167"
    }
  ]
}

我只想获取以下格式的输出，不确定如何获取.

I just want to get the output as below format and not sure how to get it.

预期输出:

{
"JIRA-1":"KINDLEAMZ-67578",

"JIRA-2":"KINDLEAMZ-68661",

"JIRA-3":"KINDLEAMZ-68167"
}

如何从每个数组中获取键值并像上面一样显示?并根据结果增加JIRA-n.

How can I get key value from each of the array and display like above? and JIRA-n will be increase based on the result.

推荐答案

给出一个数组，您可以使用to_entries/1将该数组映射为索引和值的数组.然后可以使用reduce或with_entries/1映射到对象上想要的键和值.

Given an array, you can use to_entries/1 to map the array an array of index and values. You could then map out to the keys and values you want on the object either using reduce or with_entries/1.

reduce (.issues | to_entries[]) as {$key,$value} ({};
    .["JIRA-\($key + 1)"] = $value.key
)

https://jqplay.org/s/y6AFKg2dSM

.issues | with_entries({key: "JIRA-\(.key + 1)", value: .value.key})

https://jqplay.org/s/H2uxyFJn9E

似乎您使用的版本小于1.5.您需要进行一些调整并删除解构.

It seems like you're using a version lesser than 1.5. You'll need to make some adjustments and remove the deconstruction.

reduce (.issues | to_entries[]) as $e ({};
    .["JIRA-\($e.key + 1)"] = $e.value.key
)

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