[basex-talk] RESTXQ and posting files

Hi, I have a script which takes a path to an xml or txt file as an input and outputs its content (as xml or txt) after a few modifications have been applied. I would like to make the script available as a RESTXQ application, but it is not clear to me how I can specify, in a RESTXQ function, that an xml or txt file should be accepted as an input. I have been able to post by sending the content of an entire file as a string, but I guess there is a specific way to handle files. Ciao, Giuseppe