channel

https://dotblogs.com.tw/milkgreenteaprograme_c_sharp/2018/05/13/214926?fbclid=IwAR3nwrg5dXrsTsvOSLhragOHtNFsGM6Gq1VaIayNplyhznsCpugwAYlpcGQ

https://developers.line.biz/en/docs/line-login/web/integrate-line-login/

http://studyhost.blogspot.com/2016/12/linebot7-line-loginoauth-sso.html

https://jeffprogrammer.wordpress.com/2018/01/18/line-login-%E9%96%8B%E7%99%BC%EF%BC%9A%E4%BB%A5-line-%E5%B8%B3%E8%99%9F%E9%A9%97%E8%AD%89%E7%99%BB%E5%85%A5%E7%B6%B2%E7%AB%99/