如何在.NET Core中使用IUserIdProvider? [英] How to user IUserIdProvider in .NET Core?

问题描述

本文介绍了如何使用IUserIdProvider接口.它显示了如何使用GlobalHost来使SignalR使用您的用户ID提供程序.但是SignalR for .Net Core没有GlobalHost.什么是替代品?

This article describes using IUserIdProvider interface. It shows how you can use GlobalHost to make SignalR use you user ID provider. But SignalR for .Net Core does not have GlobalHost. What is the replacement?

推荐答案

您需要实现

You need to implement IUserIdProvider.

public class MyCustomProvider : IUserIdProvider
{
    public string GetUserId(HubConnectionContext connection)
    {
        ...
    }
}

然后您需要在 Startup 中注册它以进行依赖项注入:

Then you need to register it in Startup for dependency injection:

public void ConfigureServices(IServiceCollection services)
{
    services.AddSignalR();
    services.AddSingleton<IUserIdProvider, MyCustomProvider>();
}

然后 SignalR 将在诸如

Then SignalR will use your UserIdProvider in such events like HubEndPoint.OnConnectedAsync()

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