Entity Framework

SaveChange 發生 There is already an open DataReader associated with this Command which must be closed first 問題

查詢的部分必須要 .ToList() 完成讀取動作才會釋放 Datareader，以避免此問題發生

預防前端遇到連點新增兩筆資料

https://malagege.github.io/blog/posts/AspNetCoreRateLimit-%E4%BD%BF%E7%94%A8%E5%B0%8F%E8%A8%98/