Answers for "` (node:6860) DeprecationWarning: current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology:"

DeprecationWarning: current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.

mongoose.connect(mongoConnectionString, {useNewUrlParser: true, useUnifiedTopology: true});

{ use UnifiedTopology: true }

mongoose.connect("mongodb://localhost:27017/NAME", { useUnifiedTopology: true, useNewUrlParser: true });