我第一次尝试使用 Integration Studio 创建一个扩展来通过文件上传进行 API 调用。不幸的是，我不太熟悉.NET。这是我试图在 Integration Studio 上复制的代码：
public static async Task<PendingAttachment> Upload(string FilePath)
{
byte[] byteFile = System.IO.File.ReadAllBytes(FilePath);
FileInfo fi = new FileInfo(FilePath);
PendingAttachment pa = null;
using (var client = new HttpClient())
{
string token = "XXXXXXXXXXXXX";
client.DefaultRequestHeaders.Add("Authorization", "Bearer" + token);
using (var content = new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture)))
{
content.Add(new StreamContent(new MemoryStream(byteFile)), "attachment", fi.Name);
using (var message = await client.PostAsync("https://www.yammer.com/api/v1/pending_attachments", content))
{
if (message.IsSuccessStatusCode)
{
var result = await message.Content.ReadAsStringAsync();
pa = Newtonsoft.Json.JsonConvert.DeserializeObject<PendingAttachment>(result);
return pa;
}
}
}
}
return null;
}
所以，这就是我尝试过的。我在 Integration Studio 上创建了以下结构：
public class PendingAttachment
{
public int id { get; set; }
public int network_id { get; set; }
public string url { get; set; }
public string web_url { get; set; }
public string type { get; set; }
public string name { get; set; }
public string original_name { get; set; }
public string full_name { get; set; }
public string description { get; set; }
public string content_type { get; set; }
public string content_class { get; set; }
public string created_at { get; set; }
public int owner_id { get; set; }
public bool official { get; set; }
public string small_icon_url { get; set; }
public string large_icon_url { get; set; }
public string download_url { get; set; }
public string thumbnail_url { get; set; }
public string preview_url { get; set; }
public string large_preview_url { get; set; }
public int size { get; set; }
public string owner_type { get; set; }
public string last_uploaded_at { get; set; }
public int last_uploaded_by_id { get; set; }
public string last_uploaded_by_type { get; set; }
public object uuid { get; set; }
public object transcoded { get; set; }
public object streaming_url { get; set; }
public string path { get; set; }
public int y_id { get; set; }
public string overlay_url { get; set; }
public string privacy { get; set; }
public object group_id { get; set; }
public bool is_pending { get; set; }
public int height { get; set; }
public int width { get; set; }
public string scaled_url { get; set; }
public Image image { get; set; }
public int latest_version_id { get; set; }
public string status { get; set; }
public Latest_Version latest_version { get; set; }
public Stats stats { get; set; }
public string _OriginalFileName { get; set; }
}
public class Image
{
public string url { get; set; }
public int size { get; set; }
public string thumbnail_url { get; set; }
}
public class Latest_Version
{
public int id { get; set; }
public int file_id { get; set; }
public string content_type { get; set; }
public int size { get; set; }
public int uploader_id { get; set; }
public string created_at { get; set; }
public string path { get; set; }
public string download_url { get; set; }
public string thumbnail_url { get; set; }
public string preview_url { get; set; }
public string large_preview_url { get; set; }
public string post_processed_id { get; set; }
public object streaming_url { get; set; }
public string revert_url { get; set; }
public int height { get; set; }
public int width { get; set; }
public string scaled_url { get; set; }
public string thumbnail_path { get; set; }
public string preview_path { get; set; }
public string large_preview_path { get; set; }
public string status { get; set; }
}
public class Stats
{
public int following { get; set; }
public int followers { get; set; }
public int updates { get; set; }
public object first_reply_id { get; set; }
public object first_reply_at { get; set; }
public int latest_reply_id { get; set; }
public string latest_reply_at { get; set; }
public int shares { get; set; }
}
由于此扩展将用于移动设备，因此我添加了 2 个输入参数，用于发送 FileData 和 FileName，以避免必须提取该数据。我添加了一个数据类型为 PendingAttachment 的输出参数，即上述结构。
所以我面临的问题是，由于它是一个异步方法，Visual Studio 不允许我有一个输出参数。那么有没有办法解决这个问题？
PS：是的，我已经尝试通过引用 Box File Upload 插件在 Service Studio 上正常实现这一点。它不起作用（出现 500 错误）。我也得到保证，这种方法可以正常工作。
谢谢您的帮助！