首页 > 解决方案 > 我在 c# wpf 中使用 spotify api 收到错误 401 未经授权

问题描述

我收到此错误。System.Net.WebException:'远程服务器返回错误:(401)未经授权。' 下面提供了代码。

当我取出方法“PrintUsefulData(api)”时,一切似乎都正常,该方法有一个 http 客户端 webrequest。我试图请求以下https://api.spotify.com/v1/albums

    static void Main(string[] args)
    {
        _clientId = string.IsNullOrEmpty(_clientId)
            ? Environment.GetEnvironmentVariable("my_clientId")//my id
            : _clientId;

        _secretId = string.IsNullOrEmpty(_secretId)
            ? Environment.GetEnvironmentVariable("my_secretId") // my id
            : _secretId;


        AuthorizationCodeAuth auth =
            new AuthorizationCodeAuth(_clientId, _secretId, "http://localhost:5002", "http://localhost:5002", Scope.PlaylistReadPrivate | Scope.PlaylistReadCollaborative);
        auth.AuthReceived += AuthOnAuthReceived;
        auth.Start();
        auth.OpenBrowser();


        Console.ReadLine();
        auth.Stop(0);

    }

    private static async void AuthOnAuthReceived(object sender, 
    AuthorizationCode payload)
    {
        AuthorizationCodeAuth auth = (AuthorizationCodeAuth)sender;
        auth.Stop();

        Token token = await auth.ExchangeCode(payload.Code);
        SpotifyWebAPI api = new SpotifyWebAPI
        {
            AccessToken = token.AccessToken,
            TokenType = token.TokenType
        };
        PrintUsefulData(api);
    }

    private static async void PrintUsefulData(SpotifyWebAPI api)
    {

        RestClient rClient = new RestClient();
        rClient.endPoint = "https://api.spotify.com/v1/albums";
        string strResponse = string.Empty;
        strResponse = rClient.getRequest();

    }

}

}

public enum HttpVerb
{
    GET,
    POST,
    PUT,
    DELETE
}

class RestClient
{
    public string endPoint { get; set; }
    public HttpVerb httpMethod { get; set; }

    public RestClient()
    {
        endPoint = string.Empty;
        httpMethod = HttpVerb.GET;
    }

    public string getRequest()
    {
        string strResponseVal = string.Empty;

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(endPoint);
        request.Method = httpMethod.ToString();

        using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
        {
            if (response.StatusCode != HttpStatusCode.OK)
            {
                throw new ApplicationException("error code: " + response.StatusCode);
            }
            using (Stream responseStream = response.GetResponseStream())
            {
                if (responseStream != null)
                {
                    using (StreamReader reader = new StreamReader(responseStream))
                    {
                        strResponseVal = reader.ReadToEnd();
                    }
                }
            }
        }
        return strResponseVal;
    }
}

}

标签: c#apispotify

解决方案


这里可能会发生一些事情,但这是我根据您发布的代码提供帮助的机会:

  • 令牌过期- 如果您在请求中收到 401 错误,那么您需要使用Refresh Token应该在授权点提供的令牌来获取新的Access Token. 这应该适用于您对 API 进行的任何调用。

  • 请求参数- 您正在调用的端点 ( https://api.spotify.com/v1/albums) 需要该参数ids,因此 Spotify API 知道您想要返回哪些“专辑” 。更多信息:https://developer.spotify.com/documentation/web-api/reference/albums/get-several-albums/

另一件要检查的事情: -范围- 确保当您对 API 进行身份验证时,您正在设置您需要在未来执行操作的所需范围。我认为这不适用于这种情况,但值得注意。


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