doc gpt V0.2

src/service/mongo.ts

@@ -0,0 +1,23 @@
+import mongoose from 'mongoose';
+import type { Mongoose } from 'mongoose';
+
+let cachedClient: Mongoose;
+
+export async function connectToDatabase() {
+  if (cachedClient && cachedClient.connection.readyState === 1) {
+    return cachedClient;
+  }
+
+  cachedClient = await mongoose.connect(process.env.MONGODB_UR as string, {
+    dbName: 'doc_gpt'
+  });
+
+  return cachedClient;
+}
+
+export * from './models/authCode';
+export * from './models/chat';
+export * from './models/model';
+export * from './models/user';
+export * from './models/training';
+export * from './models/chatWindow';