Me encontré con el mismo problema ayer. ¡Afortunadamente, encontró una solución!

 import { MongoClient } from "mongodb"; if (!process.env.MONGODB_URI) { throw new Error("Please add your Mongo URI to .env.local"); } const uri: string = process.env.MONGODB_URI; let client: MongoClient; 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). let globalWithMongoClientPromise = global as typeof globalThis & { _mongoClientPromise: Promise<MongoClient>; }; if (!globalWithMongoClientPromise._mongoClientPromise) { client = new MongoClient(uri); globalWithMongoClientPromise._mongoClientPromise = client.connect(); } clientPromise = globalWithMongoClientPromise._mongoClientPromise; } else { // In production mode, it's best to not use a global variable. client = new MongoClient(uri); 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;