.net-core - SignalR Core 如何获取服务器端的连接参数

Question

按照这个答案How to send Parameter/Query in HubConnection SignalR Core

我正在设置客户端:

const connectionHub = new HubConnectionBuilder()
.withUrl(Constants.URL_WEB_SOCKET + '?token=123')
.build();

但是服务器端如何获取token值呢？

public override async Task OnConnectedAsync()
{
    _connectionId = Context.ConnectionId;

    var token = Context.Items["token"]; // this is null

    var token2 = Context.QueryString["token"]; // 'HubCallerContext' does not contain a definition for 'QueryString' 

    await base.OnConnectedAsync();
 }

Answer 1

如果想在.net core中获取token值，可以使用如下代码:

var httpContext = Context.GetHttpContext();
var tokenValue = httpContext.Request.Query["token"];