diff --git a/app/router/index.ts b/app/router/index.ts
index af3d265..ff12495 100644
--- a/app/router/index.ts
+++ b/app/router/index.ts
@@ -11,7 +11,14 @@ const router = createRouter({  //@ts-ignore
       meta: {
         title: "Chat Nio",
       },
-    },
+    }, {
+      path: "/login",
+      name: "login",
+      component: () => import("../src/views/LoginView.vue"),
+      meta: {
+        title: "Login | Chat Nio",
+      }
+    }
   ],
 });
 
diff --git a/config.example.yaml b/config.example.yaml
index e77ffac..a5d4d8d 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -10,3 +10,16 @@ openai:
   anonymous_endpoint: https://api.openai.com/v1
   user: sk-xxxxxx
   user_endpoint: https://api.openai.com/v1
+
+mysql:
+  host: "localhost"
+  port: 3306
+  user: root
+  password: ...
+
+  db: "chatnio"
+
+secret: ...
+auth:
+  access: ...
+  salt: ...
diff --git a/connection/database.go b/connection/database.go
new file mode 100644
index 0000000..668b89b
--- /dev/null
+++ b/connection/database.go
@@ -0,0 +1,93 @@
+package connection
+
+import (
+	"database/sql"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/spf13/viper"
+	"log"
+)
+
+var Database *sql.DB
+
+func ConnectMySQL() *sql.DB {
+	// connect to MySQL
+	Database, err := sql.Open("mysql", fmt.Sprintf(
+		"%s:%s@tcp(%s:%d)/%s",
+		viper.GetString("mysql.user"),
+		viper.GetString("mysql.password"),
+		viper.GetString("mysql.host"),
+		viper.GetInt("mysql.port"),
+		viper.GetString("mysql.db"),
+	))
+	if err != nil {
+		log.Fatalln("Failed to connect to MySQL server: ", err)
+	} else {
+		log.Println("Connected to MySQL server successfully")
+	}
+
+	CreateUserTable(Database)
+	CreateSubscriptionTable(Database)
+	CreatePackageTable(Database)
+	CreatePaymentLogTable(Database)
+	return Database
+}
+
+func CreateUserTable(db *sql.DB) {
+	_, err := db.Exec(`
+		CREATE TABLE IF NOT EXISTS auth (
+		  id INT PRIMARY KEY AUTO_INCREMENT,
+		  bind_id INT UNIQUE,
+		  username VARCHAR(24) UNIQUE,
+		  token VARCHAR(255) NOT NULL,
+		  password VARCHAR(64) NOT NULL
+		);
+	`)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func CreatePaymentLogTable(db *sql.DB) {
+	_, err := db.Exec(`
+		CREATE TABLE IF NOT EXISTS payment_log (
+		  id INT PRIMARY KEY AUTO_INCREMENT,
+		  user_id INT,
+		  amount DECIMAL(12,2) DEFAULT 0,
+		  description VARCHAR(3600),
+		  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		);
+	`)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func CreateSubscriptionTable(db *sql.DB) {
+	_, err := db.Exec(`
+		CREATE TABLE IF NOT EXISTS subscription (
+		  id INT PRIMARY KEY AUTO_INCREMENT,
+		  user_id INT,
+		  plan_id INT,
+		  expired_at DATETIME,
+		  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		);
+	`)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func CreatePackageTable(db *sql.DB) {
+	_, err := db.Exec(`
+		CREATE TABLE IF NOT EXISTS package (
+		  id INT PRIMARY KEY AUTO_INCREMENT,
+		  user_id INT,
+		  money DECIMAL(12,2) DEFAULT 0,
+		  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		);
+	`)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/go.mod b/go.mod
index ab46d76..4cb0bb4 100644
--- a/go.mod
+++ b/go.mod
@@ -15,6 +15,7 @@ require (
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.14.0 // indirect
 	github.com/go-redis/redis/v8 v8.11.5 // indirect
+	github.com/go-sql-driver/mysql v1.7.1 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
diff --git a/go.sum b/go.sum
index 3770b19..6d76280 100644
--- a/go.sum
+++ b/go.sum
@@ -83,6 +83,8 @@ github.com/go-playground/validator/v10 v10.14.0 h1:vgvQWe3XCz3gIeFDm/HnTIbj6UGmg
 github.com/go-playground/validator/v10 v10.14.0/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
 github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI=
 github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo=
+github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
+github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
diff --git a/main.go b/main.go
index 7989685..eda2447 100644
--- a/main.go
+++ b/main.go
@@ -14,12 +14,14 @@ func main() {
 		panic(err)
 	}
 	connection.ConnectRedis()
+	connection.ConnectMySQL()
 
 	app := gin.Default()
 	{
 		app.Use(middleware.CORSMiddleware())
+		app.Use(middleware.BuiltinMiddleWare(connection.Database, connection.Cache))
 		app.Use(middleware.ThrottleMiddleware())
-		
+
 		app.POST("/api/anonymous", api.AnonymousAPI)
 	}
 	if err := app.Run(":" + viper.GetString("server.port")); err != nil {