fix

Author: Nithunikzz

cmd/cli/config/config.go

@@ -22,15 +22,26 @@ func OpenClickHouseConn() (*sql.DB, *Config, error) {
 	if err != nil {
 		return nil, nil, err
 	}
-	conn := clickhouse.OpenDB(&clickhouse.Options{
-		Addr: []string{
-			fmt.Sprintf("%s:%d", cfg.DBAddress, cfg.DbPort)},
-		Debug: true,
-		Auth: clickhouse.Auth{
-			Username: cfg.ClickHouseUsername,
-			Password: cfg.ClickHousePassword,
-		},
-	})
+	var conns clickhouse.Options
+
+	if cfg.ClickHouseUsername != "" && cfg.ClickHousePassword != "" {
+		fmt.Println("Using provided username and password")
+		conns = clickhouse.Options{
+			Addr:  []string{fmt.Sprintf("%s:%d", cfg.DBAddress, cfg.DbPort)},
+			Debug: true,
+			Auth: clickhouse.Auth{
+				Username: cfg.ClickHouseUsername,
+				Password: cfg.ClickHousePassword,
+			},
+		}
+	} else {
+		fmt.Println("Using connection without username and password")
+		conns = clickhouse.Options{
+			Addr: []string{fmt.Sprintf("%s:%d", cfg.DBAddress, cfg.DbPort)},
+		}
+	}
+
+	conn := clickhouse.OpenDB(&conns)
 	if err := conn.Ping(); err != nil {
 		if exception, ok := err.(*clickhouse.Exception); ok {
 			return nil, nil, fmt.Errorf("[%d] %s %s", exception.Code, exception.Message, exception.StackTrace)