Does anyone know if this would be at all possible in Umbraco? I have an RFID tag reader, each member will have a unique tag number on the membership record, what I want to do is when the tag is read by the reader I want it to log show that members account (maybe backoffice but probably in a UI) Do you think it would be simplest to just have a file/folder watcher and dump the tag ID as a text file when it is read?

Real easy (but also easily spoofable) could be to make the tag go to a URL with the member Id in it and log it that way? As a fix for just anyone being able to repeat the URL you could put the URL behind a login so it only logs when a logged-in member scans it / goes to the URL.

security won't be too much of an issue as site will be totally local and only accessed by a few people, the tag is just to identify someone to pull up their details

So then I'd really just program the tags with a URL and pull that up while scanning on a phone.. you could use the reader and do something more complicated, but it seems like more friction than needed