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我只是想用我的最後一封電子郵件以ASP.NET MVC編程方式下載附件。GMAIL API .NET無效附件標記
至於我可以在這裏找到,我從谷歌唯一需要的權限爲「https://www.googleapis.com/auth/gmail.readonly」,授予我「閱讀所有資源及其元數據沒有寫入操作。」來源: (https://developers.google.com/gmail/api/auth/scopes)
問題是,當我嘗試訪問連接我得到一個錯誤:
$exception
{"Google.Apis.Requests.RequestError
Invalid attachment token [400]
Errors
[Message[Invalid attachment token]
Location[ - ] Reason[invalidArgument]
Domain[global]\r\n]\r\n"}
這是我的代碼的例子,到目前爲止:
static string[] Scopes = { GmailService.Scope.GmailReadonly };
public ActionResult Login()
{
UserCredential credential;
var diskPath = Server.MapPath("~");
using (var stream = new FileStream(diskPath + "/Content/client_secret.json", FileMode.Open, FileAccess.Read))
{
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None).Result;
}
// Create Gmail API service.
var service = new GmailService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
var resp = service.HttpClient.GetStringAsync("https://www.googleapis.com/gmail/v1/users/me/messages?q=\"has:attachment\"").Result;
var root = JsonConvert.DeserializeObject<ListMessagesResponse>(resp);
foreach (var msg in root.Messages)
GetAttachments(service, msg.Id);
return View();
}
public static void GetAttachments(GmailService service, String messageId)
{
var message = service.Users.Messages.Get("me", messageId).Execute();
var parts = message.Payload.Parts;
foreach (var part in parts)
{
if (!String.IsNullOrEmpty(part.Filename))
{
var attachPart = service.Users.Messages.Attachments.Get("me", messageId, part.PartId).Execute();
var file = Convert.FromBase64String(attachPart.Data);
System.IO.File.WriteAllBytes(part.Filename, file);
}
}
}
我得到這個錯誤,當我經過:
var attachPart = service.Users.Messages.Attachments.Get("me", messageId, part.PartId).Execute();
是否有任何其他適用範圍我必須輸入附件?或者我需要在一些操作後刷新令牌嗎?我已經嘗試刪除並在Google+個人資料中重新添加該應用!