diff --git a/hasaki-push/api_push_message.go b/hasaki-push/api_push_message.go
index 7b7538f..8b82cb4 100644
--- a/hasaki-push/api_push_message.go
+++ b/hasaki-push/api_push_message.go
@@ -40,3 +40,20 @@ type MessageHandler func(session *melody.Session, message []byte)
 func SetMessageHandler(messageType string, f MessageHandler) {
 	messageHandlerMap.Store(messageType, f)
 }
+
+// LOGIN
+type SessionType string
+
+const (
+	Unknown   SessionType = "unknown" // 未知
+	PadType   SessionType = "pad"     // 平板
+	AdminType SessionType = "admin"   // 管理员
+	UserType  SessionType = "user"    // 用户
+	CoachType SessionType = "coach"   // 教练
+)
+
+type Session struct {
+	*melody.Session
+	Type   SessionType `json:"type"`
+	UserId int         `json:"user_id"`
+}