[!WARNING]

This adapter cannot support Next.js middleware with next-auth until Mongoose supports the Next.js Edge Runtime. Or, Next.js adds Node.js net API support to middlewares. You CAN still generally use it with Next.js however.
See: Mongoose docs

Getting Started

1. Install Auth.js (@auth/express, @auth/sveltekit, next-auth, etc.), mongoose and @brendon1555/authjs-mongoose-adapter:

npm install @brendon1555/authjs-mongoose-adapter mongoose @auth/express

2. Add a MongoDB connection string to your environment variables:

MONGODB_URI=mongodb://localhost:27017/my-database

3. Add this adapter to your auth config:

   1. Express

   import { ExpressAuth } from "@auth/express";
   import { MongooseAdapter } from "@brendon1555/authjs-mongoose-adapter";
   
   const app = express();
   
   app.use(
     "/auth/*",
     ExpressAuth({
       adapter: MongooseAdapter(process.env.MONGODB_URI),
       ...
     })
   );

   2. SvelteKit

   import { SvelteKitAuth } from "@auth/sveltekit";
   import { MongooseAdapter } from "@brendon1555/authjs-mongoose-adapter"
   
   export const { handle, signIn, signOut } = SvelteKitAuth({
     adapter: MongoDBAdapter(process.env.MONGODB_URI),
     ...
   });

   3. Next.js (Middleware not supported yet)

    import NextAuth from "next-auth"
    import { MongooseAdapter } from "@brendon1555/authjs-mongoose-adapter"
   
    export default NextAuth({
      adapter: MongooseAdapter(process.env.MONGODB_URI),
      ...
    })

License

ISC