I have implemented auth js in next js project.I also split the config like auth.js and auth.config.js.
now for the signIn functionality, If I add mongoClient to my auth.config.js, I am getting edge runtime error

how can I solve this???

bellow is my code-

//auth.config.js

import { NextAuthConfig } from "next-auth";
import Credentials from "next-auth/providers/credentials";
// import { getUserFromDB } from "./lib/db-utils";

const authConfig = {
  providers: [
    Credentials({
      credentials: {
        email: {},
        password: {},
      },

      authorize: async (credentials) => {
        let user = null;

        // user = await getUserFromDB(credentials.email);

        if (user) {
          const isPasswordValid = bcrypt.compareSync(
            credentials.password,
            user.password
          );

          if (isPasswordValid) {
            return { name: user.name, email: user.email };
          }
        }

        // If user is not found or password is invalid, return null
        throw new Error("Invalid credentials");
      },
    }),
  ],
};

export default authConfig;

//auth.js

import NextAuth from "next-auth";
import authConfig from "./auth.config";
import { MongoDBAdapter } from "@auth/mongodb-adapter";
import clientPromise from "./lib/db";

export const { handlers, auth, signIn, signOut } = NextAuth({
  adapter: MongoDBAdapter(clientPromise),
  session: { strategy: "jwt" },
  ...authConfig,
});

//db.js

import { MongoClient, ServerApiVersion } from "mongodb"
 
if (!process.env.MONGODB_URI) {
  throw new Error('Invalid/Missing environment variable: "MONGODB_URI"')
}
 
const uri = process.env.MONGODB_URI
const options = {
  serverApi: {
    version: ServerApiVersion.v1,
    strict: true,
    deprecationErrors: true,
  },
}
 
let client
let clientPromise
 
if (process.env.NODE_ENV === "development") {
  // In development mode, use a global variable so that the value
  // is preserved across module reloads caused by HMR (Hot Module Replacement).
  let globalWithMongo = global 
 
  if (!globalWithMongo._mongoClientPromise) {
    client = new MongoClient(uri, options)
    globalWithMongo._mongoClientPromise = client.connect()
  }
  clientPromise = globalWithMongo._mongoClientPromise
} else {
  // In production mode, it's best to not use a global variable.
  client = new MongoClient(uri, options)
  clientPromise = client.connect()
}
 
// Export a module-scoped MongoClient promise. By doing this in a
// separate module, the client can be shared across functions.
export default clientPromise

help me please

I want to have a solution for this. I tried exactly same as the official doc said but don’t know how to implement the login logic for credentials.