I recently needed to watch the Midas messages for a particular error - and
thus needed a command to "get all the messages since a time t".
The documentation (https://midas.triumf.ca/MidasWiki/index.php/AJAX#jmsg)
documents a way to "get the most recent n messages" - but when I dug into the
code, I was delighted to find that the existing Midas code also supports the
"get all messages since t" query.
For the "get all messages since t" query, the parameter t should be the unix
timestamp in seconds, and the parameter n should be zero: curl -X GET
Pretty useful! Perhaps this should be added to the AJAX documentation?