I've got a flex app that needs to update data routinely (about once per minute). The data is stored in a database on my server and there could be several 10's to hundreds of users who are looking at the data simultaneously via the flex app. The data is represented by colored dots on a map. When the data changes, and it does about once per minute, I basically need to update the color of one or potentially several thousand objects on the map. I'd like for the changes to be seen by all users at the same time (data push right?). I've seen a tutorial online (the horse race one) about doing something similar, but it required the Adobe Media Server on the server side. Is there a cheaper and better way to do this using one of the open source AMF's out there? I've played around with AMF::Perl, but it doesn't seem to have the data push capability, only responds to requests as far as I can tell. Has anyone done something like this? If so what did you use? I'm working with Win2k3, IIS6, and SQL Express if that makes a difference. Currently, I have a program running on the server creating an XML file with the color of the objects as one of the attributes. My flex app routinely reloads this file, but this is cumbersome as it has to reload all the objects and all users of the app don't update simultaneously since the timers all start at differnet times. Looking for some good advice and would be willing to pay for expert help.
Regards, Cameron
