implement Scylla database

db/scylla.go

@@ -0,0 +1,28 @@
+package db
+
+import (
+	"log"
+
+	"github.com/gocql/gocql"
+)
+
+var Session *gocql.Session
+
+func InitScyllaDB() {
+	cluster := gocql.NewCluster("127.0.0.1") // Replace with your ScyllaDB cluster IPs
+	cluster.Keyspace = "chatservice"         // Replace with your keyspace
+	cluster.Consistency = gocql.Quorum
+
+	session, err := cluster.CreateSession()
+	if err != nil {
+		log.Fatalf("Failed to connect to ScyllaDB: %v", err)
+	}
+	Session = session
+	log.Println("Connected to ScyllaDB")
+}
+
+func CloseScyllaDB() {
+	if Session != nil {
+		Session.Close()
+	}
+}