Capture unique Bearer token into variable and passed into header of request2

Some tips here … yeah, i know, coming from Postman into Katalon can be a bit confusing at the beginning:

With Postman, for every test scenario, you create a request, pre-conditions are initialized into the Pre script and verifications are done into the Test script. So, for a new scenario using the same request (let’s say once you do a valid API call and check for success and for the second you provide wrong data and check for 404 code) you have to create a new request (could be duplicated from the first one)

With Katalon, you have to think up-side-down. You make a single request object, parametrized, and for every scenario you create a TestCase, passing variables accordingly. Verification’s are made in the testcase.

Of-course, you can use same approach like in postman, for every scenario create a request object and use the verification snippets straight in the request object … but using the other way will give you more flexibility and the resulting project will be cleaner, will have less request objects.

Personally i prefer to make only few generic request objects. Let’s say one for GET, one for POST, one for PUT, one for DELETE, fully parameterized, and maybe one more for grabbing the auth token.
For the rest I simply create testcases for each scenario needed and initialize the variables straight from the code (endpoint, header if its changing, body etc)

During the design stage, I just run the auth call manually, copy the token and paste into the Execution Profile in use. When it’s expired, renew it.
Once I have few tescases working, I make a suite, where the first tescase is the one which gets the token and is saving it into the Global Variables > run it.

And so on, for every new scenario, make a new testcase, run it manually, once is working fine, add it to the suite.
You can have also another verification suite where you put only the auth testcase and the new designed … once it’s working fine add the new case into the main suite too.
And more, once you have a full suite with all kind of scenarios (postive, negative, boundary etc) you can duplicate it, keep only the positive tests and use it as a smoke suite, the full one can be used as sanity or regression. With Postman, for this you will have to duplicate the full collection and remove the requests not needed or do some dirty voodoo using postman.setNextRequest… so I think you can see some benefits here.

Hope this hints will help you to migrate easily. Cheers!


and yeah … later, when you gain some experience with Katalon, you may find out you don’t need request objects at all … but you can make a CustomKeyword class and define your request templates there …
but hey, one step at a time.

Happy testing!

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Agree with you :, I make a suite, where the first tescase is the one which gets the token and is saving it into the Global Variables > run it.

Yes this is where i want to come


@bionel @kazurayam jst to update i am able to work with 2nd request. but what i did is copy and paste the token (manual)

thanks for your inputs. But now what to do automated this. @huynguyen
Capture that value in Variable and used it like above Screenshot(readsBearer ${a_token} )

I get token expires, so this is where i need to use Variables for Any help in this would be great.

facing this error with jsonSlurper

WS.sendRequest(findTestObject('Postman/GenerateAccessToken', [('TOKEN_URL') : GlobalVariable.TOKEN_URL, ('c_ID') : GlobalVariable.c_ID
            , ('u_name') : GlobalVariable.u_name, ('c_SECRET') : GlobalVariable.c_SECRET, ('enc_pwd') : GlobalVariable.enc_Pwd]))


String tokenGen() {
def response = WS.sendRequest(findTestObject('Object Repository/Postman/GenerateAccessToken'))
//def jsonSlurper = new JsonSlurper()
def jsonSlurper = new JsonSlurper()
def result = jsonSlurper.parseText(response.getResponseBodyContent())
def token = result.access_token
WS.verifyResponseStatusCode(response, 200)
GlobalVariable.token = token

This is what I needed . All Manual Work is working with copy pasting

i have already told you to stop thinking ‘Postman’. why did you put the code for getting the token into a variable?
and for god sake. stop using request objects and explore test-cases scripting

I am sorry @bionel . I am trying. Sorry frustrating you. I am not aware of what value of ‘token’ would be there… ( I had a manually copied the token value and it worked)
So wanted to automate the same.

Let me delete all the test and start afresh.

you do not ‘frustrating’ me … ‘au contraire’ :slight_smile:
I’ve been blocked many times before by my own mind, this is why I suggest you a ‘reset’.
with Katalon you will be one more step forward to truly AQA and yeah … i know it is hard to migrate from manual testing habits to code …
we are here to guide you … try to understand how it works under-the-hood (hint: is a mini IDE, not just a tool) …

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@bionel Thankyou.

Just seems all working with copy pasting stuff.
Request 1(Post) token generation (GenerateAccessToken)
Request 2 (generate id) with token) done (from Globally variable manually copy paste) (2_TPO-Create Item)

Now step by Step. What would be the next step. I am happy to learn

ok … now go to Step 4, create two testcases, one for each request, and execute them.
see the doc:

1 Like

Thanks able to create 3 test case (Tested and Verify)
Getitem(from auth)

But for other GET requests I am getting Not Found (not ever Token expired, when it should should give on expired token)

What would be next step ?

well … now is time to get your hands dirty.
Open the testcase wich gets the token, parse the response and save it in the Global Variable.
You should already have in it something like:

response = WS.SendRequestBlah ....

now use the slurper to get the token value and save it in the variable, sort of:

slurper = new groovy.json.JsonSlurper()
result = slurper.parseText(response.getResponseBodyContent())
token = result.token // use the key name from the json response here
GlobalVariable.token = token //use the variable name you defined in the profile

also make sure you add the needed import at the top for Json.Slurper.

once done and the tescase is working fine, go to step 6 in the doc:

  • create a testsuite
  • add the tescase to get the token to be the first one
  • add the second testcase known to work
  • run it

Now your testsuite should automatically retrieve the token and save it in the scoped instance of the Global Variable so other testcases from the suite will use this one instead of the one set in the GUI.
(you can add some println statements in your testcases to make sure the right value is used)

1 Like

Thanks @bionel :slight_smile: I am doing the same. Thank you for patience and answering my queries .
and can you please check this

Hi gsp,
did you get solution for above , to make it automate to get the access token in a variable , without putting manually , so that even if it gets expired I dont have to manually change it while running the suite.
I am working on similar, so would like to hear from you.


Hi All ,

I am also new with Katalon Studio and just going to switch from Postman to Katalon , can you please guide me where i am doing wrong.

Please see below my screen shots and code

AuthToken Generate Call:

ResponseObject response = WSResponseManager.getInstance().getCurrentResponse()

slurper = new groovy.json.JsonSlurper()
result = slurper.parseText(response.getResponseBodyContent())
AutToken = result.access_token // use the key name from the json response here
GlobalVariable.access_token = AutToken //use the variable name you defined in the profile

Now, second call AuthToken is used to get Data

Sorry@djaiswal for late reply

Yes @harsh.vardhan have done it same. the point is when you run the TestSuite it will work with Global Variables. Kindly try tun that let me know

@gsp , yes it worked for TestSuite Run :grinning:

Hi @gsp , now I have some other issue i.e., when run only with sendRequest then its PASS but when execute with sendRequestAndVerify then its failed.

See below: [Above written code is the same] now TestCase code

WS.sendRequestAndVerify(findTestObject(‘Token Genrate/Base Class (Data)’))

Test Cases/Country Package/Verify Packages By Country Code FAILED.
groovy.lang.MissingPropertyException: No such property: access_token for class: internal.GlobalVariable


That’s because your and not using any value to verify the response.

Pls check below the document