Warning on Connecting to MongoDB with a Node server

May 10, 2023 by Tarik

Check your mongo version

 mongo --version

If you are using version >= 3.1.0 change you mongo connection file to ->

 MongoClient.connect("mongodb://localhost:27017/YourDB", {
   useNewUrlParser: true,
   useUnifiedTopology: true
 })

For details about the useUnifiedTopology option added in 3.2.1, see https://github.com/mongodb/node-mongodb-native/releases/tag/v3.2.1