VB.NET-如何使用Blogger API V3向Blogspot发布帖子？

我正试图通过我的vb.net应用程序，使用。 但我每次都失败了。 有时返回403禁止的错误，有时返回未授权的错误。 请帮忙

 Dim mBlogID As String = "5861877551002158183"
    Dim AuthToken As String = "AIza......xxxx..........E6g"
    Dim post As String = "{""kind"": ""blogger#post"", ""blog"": { ""id"": """ & mBlogID & """}, ""title"": ""abc-title"", ""content"": ""abc-cont""}"
    Dim request As HttpWebRequest = DirectCast(WebRequest.Create("https://www.googleapis.com/blogger/v3/blogs/" & mBlogID & "/posts?key=" & AuthToken), HttpWebRequest)


    request.Method = "POST"
    request.ContentLength = post.Length
    request.ContentType = "application/json"
    request.Headers.Add("Authorization: ", AuthToken) '<--- error here

    Using requestStream As Stream = request.GetRequestStream()
        Dim postBuffer As Byte() = Encoding.ASCII.GetBytes(post)
        requestStream.Write(postBuffer, 0, postBuffer.Length)
    End Using


    Using response As HttpWebResponse = DirectCast(request.GetResponse(), HttpWebResponse) '<--- Unauthorised error or 403 error here
        Using responseStream As Stream = response.GetResponseStream()
            Using responseReader As New StreamReader(responseStream)
                'Dim json As String = responseReader.ReadToEnd()
                'Dim PostURL As String = Regex.Match(json, """url"": ?""(?<id>.+)""").Groups("id").Value
                MsgBox(json) 'want to read json response here.
                'MsgBox(PostURL)
            End Using
        End Using
    End Using

Dim mBlogID As String=“5861877551002158183”
Dim AuthToken As String=“AIza……xxxx…………E6g”
Dim post As String=“{”kind”“：“blogger#post”“blog”“：{”id”“：“&mBlogID&”“}”，“title”“：“abc title”“content”“：“abc cont”“}”
Dim请求为HttpWebRequest=DirectCast（WebRequest.Create（“https://www.googleapis.com/blogger/v3/blogs/“&mBlogID&”/posts？key=“&AuthToken），HttpWebRequest）
request.Method=“POST”
request.ContentLength=post.Length
request.ContentType=“应用程序/json”
添加（“授权：，AuthToken）”我建议查看。这篇文章有充分的解释。
在你回答时，这个问题已经是10个月前的问题了。目前我正在做另一个项目，稍后会考虑你的解决方案。谢谢