I am trying to setup dd-trace to auto instrument next and graphql spans in my nextjs app.

This works correctly in a dev build (graphql spans are uploaded to datadog), however, in production build the graphql plug is not initialised.

instrumentation.ts

export async function register(){
   if(process.env.NEXT_RUNTIME === 'nodejs') {
      const tracerLib = await import('dd-trace')
      tracerLib.default.init({ ... })

      tracer.use('next', { enabled: true, measured: true })
      tracer.use('graphql', { enabled: true, measured: true })
   }
}

next.config.js

{
   experimental: {
      instrumentationHook: true
   }
}

I then moved the instrumentation code to a server-preload.js file and ran node -r ./server-preload.js node_modules/.bin/next start and everything worked as expected in production build.

According to the docs, dd-trace must be imported before anything else.

My guess is that in the production build dd-trace is not being imported early enough.

Is there any way to guarantee that a package will be imported before initialising the nextjs server?

Note: I have tried inspecting the unminified bundle but that has not been too easy to figure out the order of imports.