c# - 谷歌相册 API mediaItems :batchCreate : NOT_IMAGE: There was an error while trying to create this media item

Question

我正在尝试使用 C# 将图像文件上传到照片库。

使用范围: https://www.googleapis.com/auth/photoslibrary https://www.googleapis.com/auth/photoslibrary.appendonly

我正在使用以下方法生成 uploadToken:

FileStream fS = new FileStream(fullPath, FileMode.Open, FileAccess.Read);
                byte[] b = new byte[fS.Length];
                fS.Read(b, 0, (int)fS.Length);
                fS.Close();
                var httpWebRequest = (HttpWebRequest)WebRequest.Create("https://photoslibrary.googleapis.com/v1/uploads");
                httpWebRequest.ContentType = "application/octet-stream";

                httpWebRequest.Headers.Add("Authorization:" + "Bearer " + auth_Token);
                httpWebRequest.Headers.Add("X-Goog-Upload-File-Name:" + imageName);
                httpWebRequest.Headers.Add("X-Goog-Upload-Protocol:" + "raw");
                httpWebRequest.Method = "POST";
                using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
                {
                    streamWriter.Write(b);
                    streamWriter.Flush();
                    streamWriter.Close();
                }
                var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

在这里，我成功获取了 uploadToken。在此之后，我继续创建 mediaItem，如下所示:

 httpWebRequest = (HttpWebRequest)WebRequest.Create("https://photoslibrary.googleapis.com/v1/mediaItems:batchCreate");
                    httpWebRequest.ContentType = "application/json";
                    httpWebRequest.Headers.Add("Authorization:" + "Bearer " + auth_Token);
                    httpWebRequest.Method = "POST";
                    using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
                    {
                        string albumID = "someid";
                        string itemDesc = "somedesc";
                        string jsonString = "{\"albumId\": \"" + albumID + "\",\"newMediaItems\": [{ \"description\": \"" + itemDesc + "\", \"simpleMediaItem\": { \"uploadToken\": \"" + uploadToken + "\" }}]}";

                        streamWriter.Write(jsonString);
                        streamWriter.Flush();
                        streamWriter.Close();
                    }
                    httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

现在我得到的回应是:

status": { "code": 3, "message": "NOT_IMAGE: There was an error while trying to create this media item." }

我在谷歌上搜索了很多，但没有找到任何解决这个问题的方法，也没有找到使用 Google Photos Library API 的 mediaUpload 的任何代码块。

请告诉我哪里做错了。

-以错误的方式读取/写入文件字节？

-使用Json字符串写错了？

请帮帮我。谢谢。

Answer 1

在上传步骤中将图像写入正文时，我通过执行以下操作成功完成了这项工作。希望这对您有所帮助!

 using (var stream = httpWebRequest.GetRequestStream())
    {
        stream.Write(b, 0, b.Length);
        stream.Flush();
        stream.Close();
    }