I am currently learning the Nextjs framework. I would say I have a solid grasp of the concepts already, but there are still a few things I am not sure about. One of those things is the spread operator [...var] or [[...var]] in a dynamic page | route file name.
For example this line from next/auth docs:
pages/api/auth/[...nextauth].js
Is there some concrete use case (that can't be achieved using getStaticPaths()), or is it just a naming convention which I don't know about?
I am currently learning the Nextjs framework. I would say I have a solid grasp of the concepts already, but there are still a few things I am not sure about. One of those things is the spread operator [...var] or [[...var]] in a dynamic page | route file name.
For example this line from next/auth docs:
pages/api/auth/[...nextauth].js
Is there some concrete use case (that can't be achieved using getStaticPaths()), or is it just a naming convention which I don't know about?
- 1 this dynamic routing also called dynamic segment which means passing additional parameters through like array. – vishal Commented Mar 9, 2024 at 11:52
1 Answer
Reset to default 9pages/api/auth/[...nextauth].js is a catch-all route which means that it will match /api/auth/a but also /api/auth/a/b, /api/auth/a/b/c and so on.
[[...nextauth]].js would be an optional catch all route. So in addition to the regular catch-all route above it would also match /api/auth.
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