MongoDB Adapter
Resources
Setup
Installation
npm install @auth/mongodb-adapter mongodbEnvironment Variables
MONGODB_URI=Configuration
./auth.ts
import NextAuth from "next-auth"
import { MongoDBAdapter } from "@auth/mongodb-adapter"
import clientPromise from "./lib/db"
export const { handlers, auth, signIn, signOut } = NextAuth({
adapter: MongoDBAdapter(clientPromise),
})The MongoDB adapter does not handle connections automatically, so you will have to make sure that you pass the Adapter a MongoClient that is connected already.
Add the MongoDB client
lib/db.ts
// This approach is taken from https://github.com/vercel/next.js/tree/canary/examples/with-mongodb
import { MongoClient } from "mongodb"
if (!process.env.MONGODB_URI) {
throw new Error('Invalid/Missing environment variable: "MONGODB_URI"')
}
const uri = process.env.MONGODB_URI
const options = {}
let client
let clientPromise: Promise<MongoClient>
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).
if (!global._mongoClientPromise) {
client = new MongoClient(uri, options)
global._mongoClientPromise = client.connect()
}
clientPromise = global._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