Matching path parameters to corresponding pages isn't supported out-of-box by Next.js.
In this example, a custom Express server is configured so that any positive integer segment in the URL path will transformed to "$param" to match the corresponding page and the original value will be stored as query string instead.
For instance, /posts/6/comments/62 will be matched to src/pages/$param/comments/$param.js in the filesystem and the IDs 6 and 62 will be provided in the query object.
yarn install
yarn devAnd then visit http://localhost:3000/