Parse values in a JSON response array in Postman

Question

I'm trying to parse the value of "id" from the JSON body response to include in an environmental variable in Postman with no success. Here is an example of the Body response.

"payload": {
    "transaction": {
        "amount": "1.00",
        "id": "114255633",
        "type": "AUTH",
        "result": "APPROVED",
        "card": "XXXXXXXXXXXX1111",
        "authorization-code": "TAS977",
    }
}

and here is my script in postman

var jsonData = JSON.parse(responseBody);
var id = jsonData.payload[0].transaction.id;
postman.setEnvironmentVariable("id", id);

Any help would be appreciated. I think my error is in the way the value I'm looking to get is nested inside an array.

PDHide · Accepted Answer · 2021-04-07 07:32:13Z

4

postman provides inbuild method to retrieve json object you don't have to parse it:

Also use the new pm api instead postman

pm.environment.set("id", pm.response.json().payload.transaction.id);

edited Apr 7, 2021 at 7:32

answered Apr 7, 2021 at 7:25

PDHide

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1 Comment

Danny Dainton Over a year ago

For more information: learning.postman.com/docs/writing-scripts/script-references/…

Kartikey · Accepted Answer · 2021-04-06 19:06:38Z

0

If I am not wrong..This should work

var jsonData = JSON.parse(responseBody);
postman.setEnvironmentVariable("id", jsonData["payload"]["transaction"]["id"]);

edited Apr 6, 2021 at 19:06

answered Apr 6, 2021 at 18:58

Kartikey

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4 Comments

Robert Cowie Over a year ago

i thought this too originally. Postman keeps throwing TypeError: Cannot read property 'id' of undefined

Kartikey Over a year ago

Try this

var jsonData = JSON.parse(responseBody);    postman.setEnvironmentVariable("id", jsonData["payload"]["transaction"]["id"]);

Robert Cowie Over a year ago

individualizing the objects did the trick. so simple! thanks!

Danny Dainton Over a year ago

The only thing wrong with your code would have been payload[0], should just be payload. It's not an array so you don't need the [0]. I would also advise against using the older syntax and look to use the pm.* API in the sandbox now, the auto suggestion will show you this in the app.

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