“As of Mendix 7.12 you have full access to the http request and response objects through a java api. This should enable you to access most of the information you need. For ease of use you can create a custom java action so you can easily access this information from a microflow. See: https://docs.mendix.com/releasenotes/desktop-modeler/7.12#features” – source Andrej Koelewijn