peworkshop/app/api/auth/[...nextauth]/route.js

// app/api/auth/[...nextauth]/route.js
import NextAuth from 'next-auth';
import CredentialsProvider from 'next-auth/providers/credentials';
import { validateCredentials } from '../../../actions/auth';

export const authOptions = {
    providers: [
        CredentialsProvider({
            name: 'Credentials',
            credentials: {
                username: { label: "Username", type: "text" },
                password: { label: "Password", type: "password" }
            },
            async authorize(credentials) {
                if (!credentials?.username || !credentials?.password) {
                    return null;
                }

                const user = await validateCredentials(
                    credentials.username,
                    credentials.password
                );

                return user;
            }
        })
    ],
    callbacks: {
        async jwt({ token, user }) {
            if (user) {
                token.id = user.id;
                token.role = user.role;
                token.username = user.username;
                token.teamId = user.teamId;
            }
            return token;
        },
        async session({ session, token }) {
            if (token) {
                session.user = session.user || {};
                session.user.id = token.id;
                session.user.role = token.role;
                session.user.username = token.username;
                session.user.teamId = token.teamId;
            }
            return session;
        }
    },
    pages: {
        signIn: '/login',
    },
    session: {
        strategy: "jwt",
    }
};

const handler = NextAuth(authOptions);
export { handler as GET, handler as POST };