c# - 使用 Oauth C# 或 VB.net 调用 Yahoo Weather API

Question

我无法通过以下代码使用 Yahoo weather service API 进行身份验证。我究竟做错了什么？我收到 401 - 未经授权。通过 xml.weather.yahoo.com 尝试过 - 同样的事情。我已经为此苦恼了一段时间，所以我们将不胜感激。

代码:

    Public Function getData() As String
    Dim resp As String = ""
    Try
        Dim consumerKey As String = "MY PRIVATE API KEY STRING GOES HERE"
        Dim consumerSecret As String = "SECRET WAS PLACED HERE"
        Dim uri = New Uri("https://query.yahooapis.com/v1/yql?q=SELECT%20*%20FROM%20weather.bylocation%20WHERE%20location%3D%27Kefar-Weradim%27%20AND%20unit%3D%22c%22&format=xml&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys")
        Dim url As String, param As String
        Dim oAuth = New OAuthBase()
        Dim nonce = oAuth.GenerateNonce()
        Dim timeStamp = oAuth.GenerateTimeStamp()
        Dim signature = oAuth.GenerateSignature(uri, consumerKey, consumerSecret, String.Empty, String.Empty, "GET", timeStamp, nonce, OAuthBase.SignatureTypes.HMACSHA1, url, param)
        Using _webResponse As WebResponse = WebRequest.Create(String.Format("{0}?{1}&oauth_signature={2}", url, param, signature)).GetResponse()
            Using reader As StreamReader = New StreamReader(_webResponse.GetResponseStream())
                resp = reader.ReadToEnd()
            End Using
        End Using
    Catch ex As Exception
        resp = "Error: " & ex.Message
    End Try
    Return resp
End Function

Answer 1

好的，所以我自己解决了这个问题。解决方案有点不同，不需要身份验证。我和许多其他人试图做的是在雅虎更改其身份验证策略后让“位置天气”发挥作用。但是，“天气预报”对此没有要求。因此，这是上述问题的解决方法。

     Private Function GetDSfromYH() As DataSet
    Dim surl As String = ""
    Dim ds As New DataSet
    Dim sbResult As New StringBuilder
    Try
        'surl = "https://query.yahooapis.com/public/v1/yql?q=SELECT%20*%20FROM%20weather.bylocation%20WHERE%20location%3D%27Kefar-Weradim%27%20AND%20unit%3D%22c%22&format=xml&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys"'
        surl = "https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20weather.forecast%20where%20woeid%3D1967578%20and%20u%3D%27c%27&format=xml&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys"
        ds.ReadXml(surl)
        Return ds

    Catch ex As Exception
        sbResult.Append("<div>Exception in function 'GetDSfromYH': " & ex.Message & " </div>")
        sbResult.Append("<div style='max-width: 200px;'>Oops, there is a problem with the service. Please refresh the page or try later.</div>")
        divResults.Controls.Add(New LiteralControl(sbResult.ToString()))
    End Try


End Function

如您所见，我将旧的 URL 字符串注释掉以供引用。新的 URL 字符串包含不同的方法，调用 weather.forecast 方法并使用 WOID。你可以找到你的 here .重要提示:发送前无需使用任何方法对 url 进行编码。您可以“按原样”使用它。我的函数中使用的 URL 在 %20u%3D%27c%27 部分包含摄氏度，“u”作为单位，“c”作为摄氏度。如果需要，您可以将“c”替换为“f”。该函数返回一个包含预测所有部分的数据集 - 每个部分都是自己的数据表，您可以根据需要使用它。祝 friend 们好运。