How do you integrate APM server monitoring with NextJS server?

I want to integrate server monitoring system like DataDog that implements APM standards. I want to achieve this without using the custom server like Express or Koa, just using the out-of-box NextJS server. My NextJS server is only being used for pages, not APIs. It would help if NextJS allows us to insert middleware for all requests. However it doesn't look like that's an option. Do you know a good way to do this?