useUnifiedTopology stop error code example
Example 1: DeprecationWarning: current Server Discovery and Monitoring engine is deprecated,
mongoose.connect("paste db link", {useUnifiedTopology: true, useNewUrlParser: true, useCreateIndex: true });
Example 2: { use UnifiedTopology: true }
mongoose.connect("mongodb://localhost:27017/NAME", { useUnifiedTopology: true, useNewUrlParser: true });