koa + socket.io + ts
ts-koa-starter typescript+koa起手式(简单的空环境) https://github.com/Vibing/ts-koa-starter
'ts-node' is not recognized as an internal or external command, operable program or batch file https://stackoverflow.com/questions/44764004/ts-node-is-not-recognized-as-an-internal-or-external-command-operable-program
websocket-chatroom 基于koa+node.js+socket.io实现简易聊天室 https://github.com/Blizzard-cyber/websocket-chatroom