use new url parser code example
Example 1: { useNewUrlParser: true } to MongoClient.connect. warnning
mongoose.connect("mongodb://localhost:27017/YourDB", { useNewUrlParser: true });
Example 2: To use the new parser, pass option { useNewUrlParser: true } to MongoClient.connect
MongoClient.connect("mongodb://localhost:27017/YourDB", { useNewUrlParser: true })