first commit

lib/db/mongodb.ts

@@ -0,0 +1,33 @@
+import { MongoClient, Db } from 'mongodb';
+
+if (!process.env.MONGODB_URI) {
+  throw new Error('Please add your MongoDB URI to .env.local');
+}
+
+const uri = process.env.MONGODB_URI;
+const options = {};
+
+let client: MongoClient;
+let clientPromise: Promise<MongoClient>;
+
+if (process.env.NODE_ENV === 'development') {
+  const globalWithMongo = global as typeof globalThis & {
+    _mongoClientPromise?: Promise<MongoClient>;
+  };
+
+  if (!globalWithMongo._mongoClientPromise) {
+    client = new MongoClient(uri, options);
+    globalWithMongo._mongoClientPromise = client.connect();
+  }
+  clientPromise = globalWithMongo._mongoClientPromise;
+} else {
+  client = new MongoClient(uri, options);
+  clientPromise = client.connect();
+}
+
+export async function getDatabase(): Promise<Db> {
+  const client = await clientPromise;
+  return client.db('librechat'); // Nom de votre base de données
+}
+
+export default clientPromise;