CODEWITHSUNDEEP
karate
user3355101
user3355101

Reputation: 231

How to add new key in json using karate.set()

Hi i am trying to add new key and value to json using karate.set but its not working getting exception as invalid varibale name, below is my code:

Backgroung:
* def myjson = {name: 'test', start_date: '27-04-2017'}
* def localDateTime = Java.type("java.time.LocalDateTime").now()
Scenario:
 * string endDate = 'myjson.end_date'
 * def endDateTmp = karate.eval(endDate)
 * eval if (endDateTmp == null) karate.set(myjson,'$.end_date',localDateTime)

Exception:

java.lang.RuntimeException: javascript evaluation failed: if (endDateTmp == null) karate.set(myjson,'$.end_date',localDateTime)
    at com.intuit.karate.ScriptBindings.eval(ScriptBindings.java:115)
    at com.intuit.karate.ScriptBindings.updateBindingsAndEval(ScriptBindings.java:103)
    at com.intuit.karate.ScriptBindings.evalInNashorn(ScriptBindings.java:88)
    at com.intuit.karate.Script.evalJsExpression(Script.java:362)
    at com.intuit.karate.StepDefs.eval(StepDefs.java:581)
Caused by: java.lang.RuntimeException: invalid variable name: {name:test, start_date:27-04-2017}
at com.intuit.karate.Script.validateVariableName(Script.java:553)
    at com.intuit.karate.Script.setValueByPath(Script.java:1480)
    at com.intuit.karate.Script.setValueByPath(Script.java:1455)
    at com.intuit.karate.ScriptBridge.set(ScriptBridge.java:101)
    at jdk.nashorn.internal.scripts.Script$23$\^eval\_.:program(<eval>:1)

If key already exist then trying to set is working, please suggest me how to add new key using karate.set() or any other way to do it.

Thanks in advance.

Upvotes: 2

Views: 7675

Answers (1)

Peter Thomas
Peter Thomas

Reputation: 58058

I think you need to read through the Karate documentation and examples a little more carefully and also be clear about some JS concepts.

* def myjson = { name: 'test', start_date: '27-04-2017' }
* def localDateTime = Java.type("java.time.LocalDateTime").now()
* if (!myjson.end_date) myjson.end_date = localDateTime + ''
* print myjson

Which results in:

[print] {
  "name": "test",
  "start_date": "27-04-2017",
  "end_date": "2018-07-05T18:13:07.547"
}

Note that I converted the Java Date to a String via concatenation. I leave how to format it correctly the way you want as a homework for you. Refer the example here for some hints: https://github.com/intuit/karate#java-interop

Upvotes: 3

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