将 void 函数分配给 Auth 事件时编译错误

Question

我正在构建一个需要 Spotify 使用 ImplicitGrantAuth 对用户进行身份验证的应用程序。我已经在 Spotify 的开发人员上设置了我的应用程序，并且有一个 ClientID。我正在为这个应用程序使用JohnnyCrazy/SpotifyAPI-NET。

• 可以找到隐式授权认证的 API 文档 here.

• 可以找到 Spotify 的 Implicit Grant Flow 文档 here.

• 可以找到ImplicitGrantAuth的原始类 here。

代码 sn-p：

static ImplicitGrantAuth auth;
static void Main(string[] args)
{
    //Create the auth object
    auth = new ImplicitGrantAuth()
    {
        //Your client Id
        ClientId = "XXXXXXXXXXXXXXXXXX", // example only
        //Set this to localhost if you want to use the built-in HTTP Server
        RedirectUri = "http://localhost",
        //How many permissions we need?
        Scope = Scope.UserReadPrivate,
    };
    //Start the internal http server
    auth.StartHttpServer();
    //When we got our response
    auth.OnResponseReceivedEvent += auth_OnResponseReceivedEvent; // <-- Error here!
    //Start
    auth.DoAuth();
}

static void auth_OnResponseReceivedEvent(Token token, string state, string error)
{
    //stop the http server
    auth.StopHttpServer();

    var spotify = new SpotifyWebAPI()
    {
        TokenType = token.TokenType,
        AccessToken = token.AccessToken
    };
    //We can now make calls with the token object
}

编译错误：

“auth_OnResponseReceivedEvent”没有过载匹配委托“SpotifyAPI.Web.Auth.ImplicitGrantAuth.OnResponseReceived”

我不确定我是否忽略了一些非常简单的东西，或者我是否需要特别添加一些东西。我对使用事件处理程序也很陌生。

Answer 1

auth_OnResponseReceivedEvent 方法中的参数过多。 OnResponseReceived委托中没有string state参数：

public delegate void OnResponseReceived(Token token, String error);

public event OnResponseReceived OnResponseReceivedEvent;