How to add tracking id for each request in fastify?

Question

Im using fastify as backend of my app. I also using pino logger.

const fastify = require('fastify')({
logger: true
})

I need that every time Im writing fastify.log.info("something") I need to see the log (in my terminal) with some trackingId. Like {message: something, trackingId: 123}. The tracking id should be the same throughout the request.

I tried to find how to do this in fastify logger docs and pino logger without success.