How should the folder structure be set up for dynamic nested routes in Next.js?

I've been reviewing the documentation for Next.js and believe I grasp the concept of dynamic routing using [slug].js, but I am facing difficulty understanding nested dynamic routes in terms of folder organization.

If I intend to develop an application based on users, how can I implement /user/[userid]/post/[postId]?

Here is what I would like to achieve:

 user
 - [id].js // for example, user/1
 - [userId]
 - - post
 - - - [postId].js // for instance, user/[userId]/post/[postId]

However, I am encountering an issue with [slugs] as it appears that having two slugs in the same folder is not allowed.

Can someone provide guidance on the correct folder structure to accomplish this? I would greatly appreciate any assistance.

javascriptdirectorynext.js

Answer №1

Instead of creating a file named index.js in the [userId] folder, one should use [id].js to render the page for the route path /user/[userId]/.

pages/
 user/
  [userId]/
    - [id].js         // will match for /user/1234
    post/
      - index.js      // will match for /user/1234/post
      - [postId].js   // will match for /user/1234/post/some-post

Likewise, creating an index.js under the post folder will be helpful in matching the route path /user/[userId]/post/ to display a list of posts for that user.

Here is an example with a folder structure that demonstrates a similar use case.

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