I'm looking to utilize a custom endpoint for file uploading and reading, intending to not store the file in my database. Although I've attempted the following approach, I encountered an error that states, "No payload deserializer available for resource kind 'ACTION_PARAMETERS' and mime type 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'." What is wrong here or how read the file?
CDS File:

JS File:
