Twitter oauth2 login doesn't work in production even if it works locally.

[cupid20103]

I've implemented Twitter Oauth2 login function using auth.js v5.0.0-beta.27 & prisam & mongodb & next.js v15.3.1

This is configuration for auth.js

import NextAuth from "next-auth";
import Twitter from "next-auth/providers/twitter";
import { PrismaAdapter } from "@auth/prisma-adapter";

import prisma from "./prisma";

export const { handlers, auth, signIn, signOut } = NextAuth({
  adapter: PrismaAdapter(prisma),
  session: { strategy: "jwt" },
  pages: { signIn: "/", error: "/auth/error" },
  providers: [
    Twitter({
      authorization: {
        url: "https://twitter.com/i/oauth2/authorize",
        params: {
          scope:
            "users.read tweet.read tweet.write bookmark.read bookmark.write like.read list.read follows.read offline.access",
        },
      },
    }),
  ],
  callbacks: {
    async jwt({ token, account, user }) {
      if (account && user) {
        token.accessToken = account.access_token;
        token.refreshToken = account.refresh_token;
        token.userID = account.providerAccountId;
        token.id = user.id;
      }

      return token;
    },
    async session({ session, token }) {
      session.accessToken = token.accessToken as string;
      session.refreshToken = token.refreshToken as string;
      session.userID = token.userID as string;
      session.user.id = token.id as string;

      return session;
    },
  },
});

My project was working fine locally, but after deploying my next.js project to Vercel, it stopped working.

After clicking the 'Authorize App' button on the Twitter authentication page, I was redirected to an error page.

What is the problem? Is this a Twitter issue or an auth.js issue?

This is my Vercel log

Please help me. 😓 Thanks in advance.

[cupid20103]

I've solved it myself.

In the previous version, I added postinstall command on the package.json like this

"postinall": "prisma generate"

But I removed it and changed original build command like this

"build": "prisma generate && next build"

So for now, everything works well!