examples/hello/config.ru in falcon-0.31.0 vs examples/hello/config.ru in falcon-0.32.0

@@ -1,3 +1,21 @@
 #!/usr/bin/env falcon --verbose serve -c
 
-run lambda {|env| [200, {}, ["Hello World"]]}
+require 'async'
+
+class RequestLogger
+	def initialize(app)
+		@app = app
+	end
+	
+	def call(env)
+		logger = Async.logger.with(level: :debug, name: "middleware")
+		
+		Async(logger: logger) do
+			@app.call(env)
+		end.wait
+	end
+end
+
+use RequestLogger
+
+run lambda {|env| Async.logger.debug(self) {env['HTTP_USER_AGENT']}; [200, {}, ["Hello World"]]}