Question

我試圖創建一個HTTP請求，以獲得一個新的accesstoken與存儲的refreshtoken，所以我可以訪問谷歌驅動器。

Dim uri As String = "https://accounts.google.com/o/oauth2/token" 

    Dim para As String = "code='" + cred.RefreshToken + "'&client_id='" + ClientCredentials.CLIENT_ID + "'&client_secret='" + ClientCredentials.CLIENT_SECRET + "'&grant_type='refresh_token'" 

    Dim httpWebRequest As System.Net.HttpWebRequest = Net.WebRequest.Create(uri) 
    httpWebRequest.Method = "POST" 
    httpWebRequest.ContentType = "application/x-www-form-urlencoded" 

    Dim requestStream As System.IO.Stream = httpWebRequest.GetRequestStream() 
    Dim streamwriter As System.IO.StreamWriter = New System.IO.StreamWriter(requestStream) 
    streamwriter.Write(para) 
    streamwriter.Close() 

    Dim httpWebResponse As System.Net.HttpWebResponse = httpWebRequest.GetResponse() 

但是這會返回一個錯誤的請求。我錯過了什麼？

Answer 1

你是不是寫您的憑據到StreamWriter的，它應該讀...

streamwriter.Write(para) 

這是假設他們是正確的，當然。