rewrite using net/http

app/common/schema.go

@@ -1,7 +1,7 @@
 package app
 
 type Login struct { // login body struct
-	UsernameRaw string `json:"username" binding:"required"`
+	UsernameRaw string `json:"username"`
 	Username    Username
-	Password    string `json:"password" binding:"required"`
+	Password    string `json:"password"`
 }