如何使用jq提取此JSON代码段中href的值？

Question

I have an API returning JSON similar to the sample below

{
  "href": "https://www.mycompany.com/api/services/myservice/instances/service-instance-3",
  "id": "si-555aa555a555",
  "links": [
    {
      "rel": "node",
      "href": "https://www.mycompany.com/api/nodes/node-aa5a5a55"
    }
  ]
}

I want to be able to parse the value https://www.mycompany.com/api/nodes/node-aa5a5a55 from the links array where the rel value is node . How can I construct a jq filter to achieve this?

Answer 1

怎么样：

jq -r '.links | map(select(.rel="node") | .href ) | first'

Answer 2

I found that this works jq -r '.links[] | select(.rel == "node") .href' jq -r '.links[] | select(.rel == "node") .href' I'm not sure of the pros/cons vs Hans' answer