class Rails::Rack::Logger
Sets log tags, logs the request, calls the app, and flushes the logs.
Log tags (taggers
) can be an Array
containing: methods that the request
object responds to, objects that respond to to_s
or Proc objects that accept an instance of the request
object.
Public Class Methods
# File railties/lib/rails/rack/logger.rb, line 15 def initialize(app, taggers = nil) @app = app @taggers = taggers || [] end
Public Instance Methods
# File railties/lib/rails/rack/logger.rb, line 20 def call(env) request = ActionDispatch::Request.new(env) if logger.respond_to?(:tagged) logger.tagged(*compute_tags(request)) { call_app(request, env) } else call_app(request, env) end end
Private Instance Methods
# File railties/lib/rails/rack/logger.rb, line 31 def call_app(request, env) # :doc: instrumenter = ActiveSupport::Notifications.instrumenter handle = instrumenter.build_handle("request.action_dispatch", { request: request }) handle.start logger.info { started_request_message(request) } status, headers, body = response = @app.call(env) body = ::Rack::BodyProxy.new(body, &handle.method(:finish)) if response.frozen? [status, headers, body] else response[2] = body response end rescue Exception handle.finish raise ensure ActiveSupport::LogSubscriber.flush_all! end
Started GET “/session/new” for 127.0.0.1 at 2012-09-26 14:51:42 -0700
# File railties/lib/rails/rack/logger.rb, line 54 def started_request_message(request) # :doc: sprintf('Started %s "%s" for %s at %s', request.raw_request_method, request.filtered_path, request.remote_ip, Time.now) end