I'm new to next.js and I wanted to know if I could protect a whole API route via middleware. So for example if i wanted to protect /api/users
Could I create /api/users/_middleware.ts
and handle authentication in the middleware and not have to worry about authentication in the actual api endpoints? If so, how would I go about doing that? The library i'm using right now is @auth0\nextjs-auth0
so I guess it would look something like this? (Also please forgive me if I code this wrong, I am doing this in the stackoverflow editor)
export default authMiddleware(req,res)=>{
const {user,error,isLoading} = whateverTheNameOfTheAuth0HookIs()
if(user)
{
// Allow the request to the api route
}
else
{
// Deny the request with HTTP 401
}
}
Do I have the general idea correct?
next-auth v4 introduced middleware for this purpose. The basic use case is pretty simple. You can add a middleware.js file with the following:
export { default } from "next-auth/middleware"
export const config = { matcher: ["/dashboard"] }
Other use cases can be found in the documentation
You can use middleware for that, something similar to this example from the documentation.
For a sub-directory inside pages
, you can create a _middleware.ts
file. It will run for all pages in this directory. It looks something like this:
import { NextRequest, NextResponse } from 'next/server'
export function middleware(req: NextRequest) {
const basicAuth = req.headers.get('authorization')
if (basicAuth) {
// do whatever checks you need here
const hasAccess = ...
if (hasAccess) {
// will render the specified page
return NextResponse.next()
}
}
// will not allow access
return new Response('No access', {
status: 401,
headers: {
'WWW-Authenticate': 'Basic realm="Secure Area"',
},
})
}
You can find more info in the documentation .
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