I need to write some routing logic based on query parameters or values in the HTTP Header fields. Would like to know how to access them in Boomi.
in HTTP operation there is a Response Headers Mapping section there you can assign header to Dynamic Document Property Name by using document property we can get in next steps
The Atom shared web server automatically sets process and document properties with special prefixes for HTTP headers and querystring key/value parameters sent to your web services listener process. You can then reference them in your process for routing, mapping, etc.
See API requests, sections Request Parameters and Input Headers.
If you're using the API component, you have the additional ability to define "whitelisted" HTTP custom headers as well as accessing dynamic portions of the resource path (if publishing REST endpoints). See API General tab.
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