Add Auth in Next13

auth.ts

import NextAuth from "next-auth";
import GithubProvider from "next-auth/providers/github";

export const authOptions = {
  providers: [
    GithubProvider({
      clientId: process.env.GITHUB_ID ?? "",
      clientSecret: process.env.GITHUB_SECRET ?? "",
    }),
  ],
};

export const handler = NextAuth(authOptions);

export {handler as GET ,handler as POST}