CODEWITHSUNDEEP
jsongroovyjsonslurper
oikonomiyaki
oikonomiyaki

Reputation: 7951

Getting the only key of a Map from JsonSlurper

I have JSON that needs to be processed using Groovy. I am pretty sure that the JSON has only one key, with this format:

{ rootKey: [...] }

Where rootKey stands for different values (e.g. "customers", "stores", etc.).

Let's say I used JsonSlurper:

def map = jsonSlurper.parseText(myjson)

How do I obtain that rootKey string?

Upvotes: 2

Views: 2602

Answers (1)

Rao
Rao

Reputation: 21369

You should be able to use keySet method to get the keys which is a list. Since, you mentioned only key, you can use the first element as shown below:

def jsonString = """{
  "rootKey": []
}"""
def json = new groovy.json.JsonSlurper().parseText(jsonString)
println json.keySet()[0]

Upvotes: 5

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