如何与重试一起创建动态路径组件，直到 [英] How to create dynamic path component in conjunction with retry until

问题描述

我有一个用例，需要首先调用API以获得ID列表.从该响应中选择一个随机ID.接下来，我调用第二个API，该API使用随机ID作为路径中的组件.

I have a use-case where I need to first call an API to get a list of ID's. From this response a random ID is chosen. Next I call a 2nd API which uses the random ID as a component in the path.

第二个API调用有可能返回空响应，因此我想使用retry until，但每次重试迭代的路径中使用不同的随机ID.

It's possible the 2nd API call can return an empty response, therefore I want to utilize retry until but use a different random ID in the path per retry iteration.

我尝试了几件事:

首先在路径中内联" JS函数以获取随机ID:

First "in-lining" the JS function in the path to get a random ID:

Given path firstPart, myGetRandomId(idList), lastPart
And retry until response.length > 1

第二，尝试将JS函数放在Examples:中作为Scenario Outline:

Second, tried putting the JS function in a Examples: as part of a Scenario Outline:

Given path firstPart, <ID>, lastPart
And retry until response.length > 1
Examples:
  | ID |
  | myGetRandomId(idList) |

我不知道的一般问题是如何使用这种内联"方法来评估JS函数.

The general issue I can't figure out is how to get the JS function to evaluate in either of this "in-line" kind of approaches.

对想法/建议表示赞赏.

And ideas/suggestions appreciated.

推荐答案

空手道retry until的工作方式是它将按原样重播请求 ，而您不能修改它.

The way that the Karate retry until works is that it will re-play the request as-is and you can't modify it.

因此，您必须采用其他方法.使用JS循环.在演示中看这个例子:

So you have to take a different approach. Use a JS loop. Look at this example in the demos:

https ://github.com/intuit/karate/blob/master/karate-demo/src/test/java/demo/polling/polling.feature

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