Add header to every request in Postman in pre-request script

Question

I want to automatically add a header to every request in my whole collection using this pre-request script:

pm.request.headers.add({
    \'key\': \"myvar\",
             


        

Answer 1

As of Postman v7.0.9, this is now possible by adding a Pre-request Script on a collection.

To do this, go to your collection, right-click it, select Edit, and go to the Pre-request Scripts tab, where you can add your snippet, i.e.:

pm.request.headers.add({
  key: 'X-HEADER-TEST',
  value: '1'
});