JSR223 Post Processor with java-script to pass a value to an array

Question

This is response output from a request in jmeter,

{
    "item": [
        {
            "id": 4,
            "name": "American Samoa",
            "capital": "Pago Pago",
            "region": "Oceania",
            "subregion": "Polynesia",
            "population": 57100,
            "area": 199,
            "numericCode": "016"
        },
        {
            "id": 249,
            "name": "Zimbabwe",
            "capital": "Harare",
            "region": "Africa",
            "subregion": "Eastern Africa",
            "population": 14240168,
            "area": 390757,
            "numericCode": "716"
        },
        {
            "id": 250,
            "name": "Aland Islands",
            "capital": "Mariehamn",
            "region": "Europe",
            "subregion": "Northern Europe",
            "population": 28875,
            "area": 1580,
            "numericCode": "248"
        },
        {
            "id": 256,
            "name": "Test Name",
            "capital": "Capital",
            "region": "NF",
            "subregion": "LoadTesting",
            "population": 10,
            "area": 10,
            "numericCode": "9"
        },
        {
            "id": 257,
            "name": "Test Name",
            "capital": "Capital",
            "region": "NF",
            "subregion": "LoadTesting",
            "population": 10,
            "area": 10,
            "numericCode": "9"
        },
        {
            "id": 258,
            "name": "Test Name",
            "capital": "Capital",
            "region": "NF",
            "subregion": "LoadTesting",
            "population": 10,
            "area": 10,
            "numericCode": "9"
        },
        {
            "id": 259,
            "name": "Test Name",
            "capital": "Capital",
            "region": "NF",
            "subregion": "LoadTesting",
            "population": 10,
            "area": 10,
            "numericCode": "9"
        },
        {
            "id": 260,
            "name": "Test Name",
            "capital": "Capital",
            "region": "NF",
            "subregion": "LoadTesting",
            "population": 10,
            "area": 10,
            "numericCode": "9"
        }
    ],
    "statusCode": 200
}

The output is in the JSON format, and I want to retrieve all the id which have "name": "Test Name","capital": "Capital","region": "NF","subregion": "LoadTesting" and store them in an array.

I am using jmeter 5.2, with JSR223 post-processor with javascript. I am getting error with the following script.

var responseData = prev.getResponseDataAsString();
var countryDetails = responseData.Items;


log.info(prev.getResponseDataAsString());
log.info(countryDetails);

Dmitri T Dmitri T · Accepted Answer · 2020-05-14T11:50:24

Don't use JavaScript in the JSR223 Test Elements and don't use anything but Groovy there. Be aware that in JMeter's JSR223 Test Elements you don't have fancy JSON object as it's not a part of Nashorn engine so your approach will not work in any case.

The relevant Groovy code to print items attribute value to the jmeter.log file would be something like:

def items = new groovy.json.JsonSlurper().parse(prev.getResponseData()).item
def countryDetails = new groovy.json.JsonBuilder(items).toPrettyString()
log.info(countryDetails)

Demo:

More information:

JSR223 Post Processor with java-script to pass a value to an array

2 Answers