JMeter : Using the JSON Postprocessor _ALL variable in one more postprocessor to fetch the data

Question

I'm having a JSON data, from which I'm able to fetch some data from JSON Extractor post-processor. And the data looks something like this,

group_1 = ["Scooter"]
group_2 = ["Bus","Jeep","Car"]
group_ALL = ["Scooter"],["Bus","Jeep","Car"]
group_matchNr = 2

So I want to fetch all this data (or accumulate) in only one array variable,

Example : groups=["Scooter","Bus","Jeep","Car"]

so that I loop it through all the individual data in the api calls in a foreach loop.

example api call in foreach loop: https://vehicles.com/${groups}

My question is, I'm trying to write the groovy script to get all the data in groups variable. But unable to. I need your help in this and to configure the foreach controller also.

Groovy Script I tried in JSR223 Postprocessor which did not work:

import groovy.json.JsonSlurper;
 
groups= vars.get("group_ALL"); 
def jsonSlurper = new JsonSlurper(); 
jsonData = JSON.stringify(vars.get("groups"))  
String tempRemoveBr = jsonData.replaceAll("[",""); 
String tempRemoveBr1 = tempRemoveBr.replaceAll("]",""); 
String[] arrVehicles = tempRemoveBr1.split(",") 
for (int i=0;i<arrVehicles.size();i++) 
{
   log.info("arrVehicles[i]") 
} 
vars.put("arrVehicles",arrVehicles)

foreach controller configured as :

Input variable : arrVehicles 
start index : 0 
output variable name : vehicleN

Answer 1

Most probably you could achieve it using JSON JMESPath Extractor, however I cannot come up with a proper configuration without seeing your full response.

If you want to process existing variables here is a Groovy script you could use:

def group1 = new groovy.json.JsonSlurper().parseText(vars.get('group_1'))
def group2 = new groovy.json.JsonSlurper().parseText(vars.get('group_2'))

def arrVehicles = group1 + group2

vars.put('arrVehicles', new groovy.json.JsonBuilder(arrVehicles).toString())

More information:

• Apache Groovy - Parsing and Producing JSON
• Apache Groovy: What Is Groovy Used For?