Saving a Postman header value into a variable throughout requests in a collection

Question

I am trying to automate my test suite in Postman so that I don't have to manually go into each request and change that header value to what I initially put in the first request.

My test suite currently looks like:

First Request:

var headerValue = postman.setGlobalVariable('Number', headerValue); console.log("Number is: " + headerValue); 

Second Request Header:

Number - {{headerValue}} 

I would expect headerValue to have the value of 'Number' since I have set it as a global variable but it is coming back as undefined. I'm not sure what I am doing wrong.

Answer 1

This is how you can do this

If Refresh_token is the header value

postman.setGlobalVariable("refresh_token",postman.getResponseHeader("Refresh_token") ); 

Official Documentation: https://www.getpostman.com/docs/postman/scripts/test_examples

Answer 2

It seems like @Sai's answer does not work is not recommended anymore, since getResponseHeader is deprecated now. The updated code is:

pm.test("First request", function() {     let headerValue = pm.response.headers.get("Number")     pm.globals.set("Number", headerValue); }); 

In the second request go Headers section, add a new header with Number as a key and {{Number}} as a value.