Question

My thinking is to capture the session_id and store it in thread local storage, e.g.

Thread.current[:session_id] = session[:session_id]

But some rails logging occurs before my filter is called.

I thought I might capture the session_id by writing a middleware plug-in. But again, I don’t seem to get it early enough for all logging.

What is the earliest that I can capture session_id?

Thanks!

Answer 1

Since Rails 3.2 support tagged logging using log_tags configuration array, log_tags array accept a Proc object, and the proc object is invoked with a request object, I could configure the log_tags following way:

config.log_tags = [ :uuid, :remote_ip,
                    lambda {|req| "#{req.cookie_jar["_session_id"]}" } ]

It’s working with Rails 3.2.3, with ActiveRecord’s session store is in use.