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我正在尝试将功能添加到允许用户将跑步上传到他们的 Strava 个人资料的应用程序中。目前，运行以 gpx 文件的形式存储在应用程序的 Documents 目录中，虽然我知道如何访问它们，但我在使用 Alamofire 请求的语法时遇到了问题。我的代码如下所示：

func getDocumentsDirectory() -> URL {
  let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
  let documentsDirectory = paths[0]
  do {
    let fileURLs = try FileManager.default.contentsOfDirectory(at: documentsDirectory, includingPropertiesForKeys: nil)
    print("Directory contents: \(fileURLs)")
  } catch {
    print("Error while enumerating files \(documentsDirectory.path): \(error.localizedDescription)")
  }
  return documentsDirectory
}

var path = getDocumentsDirectory()
path = path.appendingPathComponent("Sample_Activity.gpx")
print("\nPath component points to: \(path)\n")

/* ======================== Begin Strava API Upload =========================== */


Alamofire.upload(multipartFormData:{ multipartFormData in

  multipartFormData.append("run".data(using: String.Encoding.utf8)!, withName: "activity_type")
  multipartFormData.append(path, withName:"activity")
  multipartFormData.append("gpx".data(using: String.Encoding.utf8)!, withName: "data_type")
        },
           usingThreshold:UInt64.init(),
           to:"https://www.strava.com/api/v3/uploads",
           method:.post,
           headers:["Authorization": "Bearer <token>"],
             encodingCompletion: { encodingResult in
               switch encodingResult {
               case .success(let upload, _, _):
                 upload.responseJSON { response in
                   debugPrint(response)
                 }
               case .failure(let encodingError):
                 print(encodingError)
               }
        })

    }

我收到了与 Postman 合作的请求，但没有与 Alamofire 合作。这是与 Postman 成功请求的照片：https ://i.stack.imgur.com/oxQcx.png

使用 Alamofire，我每次都会获得 400 状态，结果如下：

[Data]: 88 bytes
[Result]: SUCCESS: {
    errors =     (
                {
            code = empty;
            field = data;
            resource = Upload;
        }
    );
    message = "Bad Request";
}

header 页面下的一个元素是授权令牌，与 Alamofire 请求中的那个相同。任何帮助深表感谢。

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