Temporary Header Values

enadocganith · September 30, 2019, 7:05am

Hey, i need to catch some values which are generated as temporary header values. i need to catch the oauth code which is generated as temporary header value to get the access token.is there anyway to save thad oauth code to variable.

danny-dainton · September 30, 2019, 9:38am

Hey @enadocganith,

Welcome to the Postman Community

You could use the pm.request.headers.get() function to capture the value of the header.

For example, adding this to the Tests tab would set the Authorization header, as the token environment variable.

pm.environment.set('token', pm.request.headers.get('Authorization'))

Is this what you were looking to do?

enadocganith · October 1, 2019, 7:45am

@danny-dainton Thank you for the solution and the fast replying.it’s very appreciated. it really helped me.but i need to know how to catch these values which i have numbered on the image that i have attached.

code (inside the Request Body).
access_token (inside Response Body).

danny-dainton · October 1, 2019, 8:10am

You’re welcome.

This question seems to have now morphed into wanting to get the values from the Headers to you wanting to get the values from a Request and a Response.

At this point, it would probably be really helpful to take a look through the learning centre to get up to speed with the way that the Postman sandbox works and features available within it.

We also have an in-app Bootcamp which is packed full of interactive lessons, it will guide you through some of the application’s awesome features.

For your particular problem, you could use something like this, in the Tests sandbox, to log the values to the Postman Console:

console.log(JSON.parse(pm.request.body.raw).code)
console.log(pm.response.json().access_code)

Once you’re happy with the values, you will be able to set them as variables using the syntax as previously mentioned.

hvirdi92 · December 5, 2019, 4:49pm

@danny-dainton

If I may ask here. I am sending a POST request to

https://login.xyz.com/oauth2/v2.0/authorize

Request Header: content-type = application/x-www-form-urlencoded

Request body contains: response type, client id, redirect uri, grant type = implicit, scope.

I am able to fetch the access token from a temporary header - ‘Referer’ and pass it on to next requests successfully in POSTMAN manual run or using Collection Runner . BUT - When I run it using Newman CLI in cmd, Temp Header value is not stored in variable . Variable is NULL.

This makes sense as well as POSTMAN UI shows an info that Temporary Headers are generated by Postman and are not saved during the process of request, so may be these headers are not picked by Newman.

Could you please confirm if we can pick values from Temporary Headers using Newman ?

danny-dainton · December 6, 2019, 12:35pm

Hey @hvirdi92,

Could you share the code in the Tests tab that you’re using to get the Referer header, please?

This doesn’t sound like it would have anything to do with the Temporary Headers but more about a redirect issue.

Have you tried using the Newman command with the --ignore-redirects flag? The way these are handled in the app are slightly different.

hvirdi92 · December 6, 2019, 1:10pm

Thanks for the response !

Code in Tests -

postman.setEnvironmentVariable(“refererHeader”, pm.request.headers.get(‘Referer’));

I am putting environment variable in a variable just to see what I get in console when I run the script - using Postman (prints the variable value ) and Newman (prints [null] in cmd)

Code in Tests -

var x = pm.environment.get(“refererHeader”);
console.log(x);

When ran in postman collection runner it is working fine but when run via newman run command it is not,
Newman command -

newman run collection.json -e environments.json
Also, tried

newman run collection.json -e environments.json --export-environment environments.json

( after the run environment file is exported but it has null variable value )

Tried

newman run collection.json -e environments.json -e environments.json --ignore-redirects

and with

–export-environment environments.json

. It didn’t work

nahy · April 1, 2020, 6:37pm

Hi @hvirdi92,

I `ve got the same problem!

Did you fix it?

Thanks a lot

GrapeQA2 · May 7, 2020, 11:11am

Hey @danny-dainton ,
I have ran into the same issue as @hvirdi92 , but couldn’t find a solution.
If I run the test from Postman, everything works fine, I can access the required value from the header with pm.request.headers.get("Referer").
But when I use Newman to run the collection, this value will be undefined. Tried with the --ignore-redirects flag, got the same result.

I’m trying to get OAuth 2.0 token from Google to access Gmail API using the following request:
curl --location --request POST 'https://accounts.google.com/o/oauth2/v2/auth?client_id=<clientID>&redirect_uri=https://www.getpostman.com/oauth2/callback&response_type=code&scope=https://www.googleapis.com/auth/gmail.readonly&access_type=offline

After the request, pm.request.headers.get("Referer") contains the redirect URL with the authorization code:
https://www.postman.com/oauth2/callback?code=<authorization_code>&scope=https://www.googleapis.com/auth/gmail.readonly

Using Newman to run this request will result in the request header being undefined. Is there another way to access this value?