Postman: Process data and script workflows using Postman JavaScript objects

The Postman JavaScript API functionality enables you to programmatically access and alter request and response data and variables using the pm object. You can also dynamically alter run order to build request workflows for the Collection Runner.
#postman

source: https://learning.postman.com/docs/tests-and-scripts/write-scripts/postman-sandbox-api-reference/#use-scripts-to-send-requests-stored-in-your-collections/