diff --git a/main.go b/main.go
index 8c39388..b9b860a 100644
--- a/main.go
+++ b/main.go
@@ -2,6 +2,8 @@ package main
 
 import (
 	"git.dragon-labs.de/alphyron/group_helper/config"
+	"git.dragon-labs.de/alphyron/group_helper/logic"
+	"git.dragon-labs.de/alphyron/group_helper/repository"
 	"log"
 
 	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api"
@@ -32,4 +34,15 @@ func main() {
 
 	bot.Debug = tgConfig.TelegramDebug
 	log.Printf("Authorized on account %s", bot.Self.UserName)
+
+	groupHelperRepo, err := repository.NewUserHelperRepository()
+
+	if err != nil {
+		log.Println("Problem while connection to the Database")
+		log.Fatal(err)
+	}
+
+	/* groupHelperService := */
+	logic.NewGroupHelperService(groupHelperRepo)
+
 }
diff --git a/repository/grouphelperrepository.go b/repository/grouphelperrepository.go
index c3a7eb8..865afe5 100644
--- a/repository/grouphelperrepository.go
+++ b/repository/grouphelperrepository.go
@@ -4,14 +4,22 @@ import (
 	"errors"
 	"git.dragon-labs.de/alphyron/group_helper/config"
 	"git.dragon-labs.de/alphyron/group_helper/logic"
+	"git.dragon-labs.de/alphyron/group_helper/repository/sql"
 )
 
-func NewUserHelperRepository() (*logic.GroupHelperRepository, error) {
+func NewUserHelperRepository() (logic.GroupHelperRepository, error) {
 	databaseConfig := config.DatabaseConfig{}
 	_ = databaseConfig.LoadConfig()
 
 	switch databaseConfig.DatabaseType {
-
+	case "mysql":
+		return sql.NewGroupHelperRepository(&databaseConfig)
+	case "postgres":
+		return sql.NewGroupHelperRepository(&databaseConfig)
+	case "sqlite3":
+		return sql.NewGroupHelperRepository(&databaseConfig)
+	case "mssql":
+		return sql.NewGroupHelperRepository(&databaseConfig)
 	}
 
 	return nil, errors.New("cannot support given database type (" + databaseConfig.DatabaseType + ")")