init

lib/db.ts

@@ -0,0 +1,21 @@
+import { MongoClient, type Db } from "mongodb";
+
+const uri = process.env.MONGODB_URI ?? "mongodb://localhost:27017";
+const dbName = process.env.MONGODB_DB ?? "knur";
+
+declare global {
+  var _mongoClientPromise: Promise<MongoClient> | undefined;
+}
+
+function getClientPromise(): Promise<MongoClient> {
+  if (!global._mongoClientPromise) {
+    const client = new MongoClient(uri);
+    global._mongoClientPromise = client.connect();
+  }
+  return global._mongoClientPromise;
+}
+
+export async function getDb(): Promise<Db> {
+  const client = await getClientPromise();
+  return client.db(dbName);
+}