Question

我有一个看起来像这样的json：

{
    "failedSet": [],
    "successfulSet": [{
        "event": {
            "arn": "arn:aws:health:us-east-1::event/AWS_RDS_MAINTENANCE_SCHEDULED_xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx",
            "endTime": 1502841540.0,
            "eventTypeCategory": "scheduledChange",
            "eventTypeCode": "AWS_RDS_MAINTENANCE_SCHEDULED",
            "lastUpdatedTime": 1501208541.93,
            "region": "us-east-1",
            "service": "RDS",
            "startTime": 1502236800.0,
            "statusCode": "open"
        },
        "eventDescription": {
            "latestDescription": "We are contacting you to inform you that one or more of your Amazon RDS DB instances is scheduled to receive system upgrades during your maintenance window between August 8 5:00 PM and August 15 4:59 PM PDT. Please see the affected resource tab for a list of these resources. \r\n\r\nWhile the system upgrades are in progress, Single-AZ deployments will be unavailable for a few minutes during your maintenance window. Multi-AZ deployments will be unavailable for the amount of time it takes a failover to complete, usually about 60 seconds, also in your maintenance window. \r\n\r\nPlease ensure the maintenance windows for your affected instances are set appropriately to minimize the impact of these system upgrades. \r\n\r\nIf you have any questions or concerns, contact the AWS Support Team. The team is available on the community forums and by contacting AWS Premium Support. \r\n\r\nhttp://aws.amazon.com/support\r\n"
        }
    }]
}

我正在尝试使用jq在successfulSet[].event（键名为affectedEntities）下添加新的键/值，我看过一些示例，例如here和{{3但是，这些答案都没有真正展示如何添加一个可能的多个值的一个键（我说可能的原因是因为截至目前，AWS正在为受影响的实体返回一个值，但如果有更多，那么我想列出它们。）

编辑：我要添加的新密钥的值存储在名为$affected_entities的变量中，该值的示例如下所示：

[
    "arn:aws:acm:us-east-1:xxxxxxxxxxxxxx:certificate/xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx"
]

值可能如下所示：

[
    "arn:aws:acm:us-east-1:xxxxxxxxxxxxxx:certificate/xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx", 
    "arn:aws:acm:us-east-1:xxxxxxxxxxxxxx:certificate/xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
    ...
    ...
    ...
]

Answer 1

您可以使用此jq，

jq '.successfulSet[].event += { "new_key" : "new_value" }' file.json

修改

试试这个：

jq --argjson argval "$new_value" '.successfulSet[].event += { "affected_entities" : $argval }' file.json

测试：

sat~$ new_value='[ "arn:aws:acm:us-east-1:xxxxxxxxxxxxxx:certificate/xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx" ]' sat~$ jq --argjson argval "$new_value" '.successfulSet[].event += { "affected_entities" : $argval }' file.json

请注意--argjson适用于jq 1.5及以上版本。

使用BASH中的jq将数组附加到json

1 个答案: