How can I use auth0 getSession() from nextjs middleware function, or is there some other way to get user particulars via middleware - next.js

Question

I have this code in /pages/api/_middleware.js:
import { getSession } from '#auth0/nextjs-auth0'
export default async function middleware(req, ev) {
const session = await getSession(req)
console.log(session)
return NextResponse.next()
}
Whenever I run an API call that hits this I get this message:
error - node_modules#auth0\nextjs-auth0\dist\index.browser.js?b875 (11:0) # Object.getSession
Error: The getSession method can only be used from the server side

Answer 1

I'm not sure it's possible with the #auth0/nextjs-auth0 lib, but I'm lazily just checking if the appSession cookie is in storage like so:
import type { NextRequest } from 'next/server'
export function middleware(req: NextRequest) {
if (req.nextUrl.pathname === '/' && req.cookies.appSession) {
return Response.redirect('/app')
}
if (req.nextUrl.pathname === '/app' && !req.cookies.appSession) {
return Response.redirect('/')
}
}

Answer 2

you can get the session inside of the middleware like this.
import { NextRequest, NextResponse } from 'next/server';
import { withMiddlewareAuthRequired, getSession } from '#auth0/nextjs-auth0/edge';
export default withMiddlewareAuthRequired(async (req: NextRequest) => {
const res = NextResponse.next();
const user = await getSession(req, res);
if (user) {
// Do what you want...
}
return res;
});
// only work on the '/' path
export const config = {
matcher: '/',
};
Found it here, hope it helps!
https://github.com/auth0/nextjs-auth0/blob/main/EXAMPLES.md