just a change

.gitignore

@@ -1,3 +1,2 @@
 node_modules
-util
 .env

util/database.js

@@ -0,0 +1,29 @@
+const mongodb = require('mongodb');
+const MongoClient = mongodb.MongoClient;
+const dotenv = require('dotenv');
+dotenv.config();
+
+let _db;
+
+const mongoConnect = cb => {
+  MongoClient.connect(process.env.MONGODB_URI)
+    .then(client => {
+      console.log('Connected');
+      _db = client.db();
+      cb();
+    })
+    .catch(err => {
+      console.log(err);
+      throw err;
+    });
+};
+
+const getDb = () => {
+  if(_db){
+    return _db;
+  }
+  throw 'No database found';
+};
+
+exports.mongoConnect = mongoConnect;
+exports.getDb = getDb;

util/path.js

@@ -0,0 +1,3 @@
+const path = require('path');
+
+module.exports = path.dirname(process.mainModule.filename);