在 C# 中通过 statuses/update_with_media 将图像发布到 Twitter

Question

如何在 C# 中通过 POST statuses/update_with_media 将图片发布到 Twitter

https://dev.twitter.com/docs/api/1/post/statuses/update_with_media

Answer 1

好的。我将在假设您知道如何使用他们的 REST api 简单地“推文”文本的情况下回答这个问题。如果您不这样做，请告诉我，我也可以提供帮助。

显然，以下两种方法对它们有更多作用，但它们确实详细显示了 REST 请求中需要额外完成的操作。需要注意的是，在这部分请求https://upload.twitter.com/1/statuses/update_with_media.json中没有使用任何查询字符串@

这些方法来自我编写的 OAuth 库，用于处理对 Twitter 和 LinkedIn 等各种 REST API 的 api 调用。

关键是如何在请求流中添加推文和照片信息。我必须以 link 为他的例子归功于个人......它肯定影响了我的 PrepareTwitterDataRequest() 方法。我也意识到这个例子是在 VB.NET 中，你要求 C#...如果你不能翻译试试this.

Friend Function ApiWebRequest(ByVal method As String, ByVal url As String, ByVal fileRequest As OAuthFileRequest) As String

        Dim request As HttpWebRequest = Me.GenerateCoreWebRequest(url, method)

        request.Headers.Add("Authorization", Me.GetAuthHeaderValue(New Uri(url), method))

        Select Case Me.ApiType

            Case OAuthApiType.Twitter
                Me.PrepareTwitterDataRequest(request, fileRequest)

            Case OAuthApiType.LinkedIn
                Me.PrepareLinkedInDataRequest(request, fileRequest)

            Case OAuthApiType.Other
                Me.PrepareDataRequest(request, fileRequest)

        End Select

        Return Me.ProcessWebRequest(request)

    End Function

    Private Sub PrepareTwitterDataRequest(ByRef request As HttpWebRequest, ByVal fileRequest As OAuthFileRequest)

        Dim shortFileName As String = fileRequest.FileShortName

        Dim fileContentType As String = Me.GetMimeType(shortFileName)

        Dim message As String = fileRequest.Message

        Dim encoding As Text.Encoding = Text.Encoding.GetEncoding("iso-8859-1")

        Dim fileHeader As String = String.Format("Content-Disposition: file; " & "name=""media""; filename=""{0}""", shortFileName)

        Dim boundary As String = DateTime.Now.Ticks.ToString("x")

        Dim separator As String = String.Format("--{0}", boundary)

        Dim footer As String = String.Format("\r\n{0}--\r\n", separator)

        Dim contents As New Text.StringBuilder()

        contents.AppendLine(separator)
        contents.AppendLine("Content-Disposition: form-data; name=""status""")
        contents.AppendLine()
        contents.AppendLine(message)
        contents.AppendLine(separator)
        contents.AppendLine(fileHeader)
        contents.AppendLine(String.Format("Content-Type: {0}", fileContentType))
        contents.AppendLine()

        Dim contentsBuffer As Byte() = encoding.GetBytes(contents.ToString())

        Dim footBuffer As Byte() = encoding.GetBytes(footer)

        'collect all byte() into one stream
        Dim byteCollector As New MemoryStream
        byteCollector.Write(contentsBuffer, 0, contentsBuffer.Length)
        byteCollector.Write(fileRequest.FileData, 0, fileRequest.FileData.Length)
        byteCollector.Write(footBuffer, 0, footBuffer.Length)

        'dump collector stream into byte()
        Dim requestBytes As Byte() = byteCollector.ToArray()

        'close/dispose the collector
        byteCollector.Close()
        byteCollector.Dispose()

        request.ContentType = (String.Format("multipart/form-data; boundary=""{0}""", boundary))
        request.ContentLength = requestBytes.Length

        Using reqStream As IO.Stream = request.GetRequestStream()

            reqStream.Write(requestBytes, 0, requestBytes.Length)

        End Using

    End Sub

Answer 2

这是一个名为 TweeterSharp 的 API，可用于将消息与图像一起发送到 twitter，下面是代码示例。

using (var stream = new FileStream(imagePath, FileMode.Open))
            {
                var result = service.SendTweetWithMedia(new SendTweetWithMediaOptions
                {
                    Status = message,
                    Images = new Dictionary<string, Stream> { { "john", stream } }
                });
                lblResult.Text = result.Text.ToString();
            }

完整描述位于 - 复制自 Post message with image on twitter using C#