coffee-ts/pages/api/auth/[...nextauth].ts

import NextAuth from 'next-auth';
import Credentials from 'next-auth/providers/credentials';
import dbConnect from '../../../utils/helpers/dbHelpers';
const User = require('../../../models/user');

export default NextAuth({
  session: {
    strategy: 'jwt',
  },
  callbacks: {
    async jwt({ token, user, account, profile, isNewUser }) {
      return { ...token, ...user };
    },
    async session({ session, token, user }) {
      return session;
    },
  },
  providers: [
    Credentials({
      name: 'Credentials',
      credentials: {
        username: { label: 'Username', type: 'text' },
        password: { label: 'Password', type: 'password' },
      },
      // @ts-ignore
      async authorize(credentials) {
        if (credentials) {
          await dbConnect();

          const userData = await User.findByCredentials(
            credentials.username,
            credentials.password
          );
          return { user: userData };
        }
        return null;
      },
    }),
  ],
});