融云ServerSDK .Net Core版 如鹏网杨中科从融云的.net版Server SDK移植为.Net Core版本。
Install-Package rongim.server.netcore
RongCloud cloud = RongCloud.getInstance("your apikey", "your AppSecret");
var result = await cloud.user.getTokenAsync('userId', "username", "http://uc.discuz.net/images/noavatar_middle.gif");