空手道 - 从 json 响应中获取以字符开头并从最后出现的值

Question

我正在尝试获取此 json

中存在的值 'F20210518060000'

[{
    "name": "F20210518000000",
    "timestamp": "2021-05-18T00:00:00Z",
    "forecast_from": "2021-05-18T00:00:00Z",
    "forecast_to": "2021-05-27T00:00:00Z"
},
{
    "name": "T20210518000000",
    "timestamp": "2021-05-18T00:00:00Z",
    "forecast_from": "2021-05-18T00:00:00Z",
    "forecast_to": "2021-05-18T06:00:00Z"
},
{
    "name": "T20210518060000",
    "timestamp": "2021-05-18T06:00:00Z",
    "forecast_from": "2021-05-18T06:00:00Z",
    "forecast_to": "2021-05-18T12:00:00Z"
},
{
    "name": "F20210518060000",
    "timestamp": "2021-05-18T06:00:00Z",
    "forecast_from": "2021-05-18T06:00:00Z",
    "forecast_to": "2021-05-27T06:00:00Z"
},
{
    "name": "T20210518120000",
    "timestamp": "2021-05-18T12:00:00Z",
    "forecast_from": "2021-05-18T12:00:00Z",
    "forecast_to": "2021-05-18T18:00:00Z"
},
{
    "name": "T20210518180000",
    "timestamp": "2021-05-18T18:00:00Z",
    "forecast_from": "2021-05-18T18:00:00Z",
    "forecast_to": "2021-05-19T00:00:00Z"
}]

条件： 获取 JSON 中以 'F'

开头的最后一项

到目前为止我的代码： 尝试了不同的方式，但仍未得到期望的响应。

输出：

14:10:23.013 [pool-1-thread-1] INFO  com.intuit.karate - [print] [
  "F20210517180000",
  "T20210517180000"]

14:10:23.018 [pool-1-thread-1] INFO  com.intuit.karate - [print] 2021-05-18T12:00:00Z

关于如何更进一步的任何提示？

Answer 1

给你：

* def temp = null;
* def fun = function(x){ if (x.name.startsWith('F')) karate.set('temp', x.name) }
* karate.forEach(response, fun)
* match temp == 'F20210518060000'

有时最好避免使用 JsonPath，请阅读：https://github.com/intuit/karate#json-transforms

空手道 - 从 json 响应中获取以字符开头并从最后出现的值

Karate - get a value that starts with a char and appears from last from json response

karate