Saving part of a response as a variable


I was wondering if there is a way to save part of a response as a variable.
I am testing a web service that posts an image, and returns a URL that contains the identifier for the image.

The only data in the response is the URL.

Is there a way to save part of that URL as a variable?

If not, the URL ends in “/image”, being able to drop that and saving the begining of the URL would be another option.

Thanks for the help.

Exactly what does your response body look like ?

I have an endpoint that returns a URL and I only test to see if the response starts with “https:”

Here is an example of the response body …

“trackUrl”: “

Here is my “test” …

function stringStartsWith (string, prefix) {
return string.slice(0, prefix.length) == prefix;

var resBody = JSON.parse(responseBody);
var testText = “”;

if(responseCode.code != 200) {
tests["TEST FAILED - Expected responseCode is 200 … responseCode received = "+responseCode.code] = responseCode.code === 200;
else {
if (stringStartsWith(resBody.trackUrl, “https:”)) {
testText = “TEST PASSED - URL starts with ‘https:’”;
else {
testText = “TEST FAILED - URL does NOT start with ‘https:’”;
tests[testText] = stringStartsWith(resBody.trackUrl, “https:”);

Hope this helps !

Hey, thanks for getting back to me!

The response body looks like this:

What I really want to do is just save the “ImageName” part.

If that’s not possible I could use the address up until the “/image” part.

I managed to get it working with

var jsonData = JSON.parse(responseBody);
var res = jsonData.replace("/image", “”)

var res2 = res.replace(“”, “”)

postman.setEnvironmentVariable(“publicImageURL”, res);
postman.setEnvironmentVariable(“publicImageUID”, res2);

That is great !!! Glad you found a way to solve your problem.