initial refactor in go

db_handler/db_handler.go

@@ -0,0 +1,21 @@
+package dbhandler
+
+import (
+	"context"
+
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+func Connect(uri string) (*mongo.Client, error) {
+	serverAPI := options.ServerAPI(options.ServerAPIVersion1)
+	opts := options.Client().ApplyURI(uri).SetServerAPIOptions(serverAPI)
+
+	client, err := mongo.Connect(context.TODO(), opts)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
+}