class Async::HTTP::Server

def call(request)
	if trace_parent = request.headers["traceparent"]
		Traces.trace_context = Traces::Context.parse(trace_parent.join, request.headers["tracestate"], remote: true)
	end
	
	attributes = {
		'http.version': request.version,
		'http.method': request.method,
		'http.authority': request.authority,
		'http.scheme': request.scheme,
		'http.path': request.path,
		'http.user_agent': request.headers["user-agent"],
	}
	
	if length = request.body&.length
		attributes["http.request.length"] = length
	end
	
	if protocol = request.protocol
		attributes["http.protocol"] = protocol
	end
	
	Traces.trace("async.http.server.call", resource: "#{request.method} #{request.path}", attributes: attributes) do |span|
		super.tap do |response|
			if status = response&.status
				span["http.status_code"] = status
			end
			
			if length = response&.body&.length
				span["http.response.length"] = length
			end
		end
	end
end