[trustfundbaby]

What I'm interested in is the mechanics behind how they know were to send a user based on their channel (beta/stable/alpha). We wanted to do something like this, but we couldn't figure out how to route users to the right app server either using AWS ELBs or nginx proxying ... admittedly we didn't really spend a lot of time thinking about it though.

[thedufer]

We do that decision-making inside the web servers. It only affects the client you get, so when someone requests a page we do a lookup on the logged-in member to decide which channel they get. API reqs don't care what channel you're on. No need for any fancy nginx proxying/etc.