Adding New Field to REST Body Using JsonSlurper

Adding new field to REST request body and using existing fields with Groovy script using JsonSlurper

Groovy Script

import groovy.json.JsonSlurper
import groovy.json.JsonOutput

def jsonSlurper = new JsonSlurper()
def jsonMessage = jsonSlurper.parseText(requestBodyTextFromClient)

jsonMessage.put("tamAd", jsonMessage.ad + " Api Management")

requestBodyTextToTargetAPI=JsonOutput.toJson(jsonMessage)

Example

Original Request

{
  "ad": "Apinizer"
}

New Request

{
  "ad": "Apinizer",
  "tamAd": "Apinizer Api Management"
}

Explanation

This script performs the following operations:

1. JSON Parse: JSON message coming from request body is parsed
2. Field Addition: A new field (tamAd) is added using existing fields
3. JSON Creation: Updated JSON message is created

This script should be run on the request line (Request Policy) because it uses the requestBodyTextFromClient and requestBodyTextToTargetAPI variables.