file-upload - 谷歌驱动器 + Alamofire : Uploading a file with properties

Question

我正在尝试通过 Swift 2/Alamofire 将文件和参数上传到 Google 云端硬盘。在下面的代码中，我更改了以下行:

"https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart"

以下内容:

"https://www.googleapis.com/upload/drive/v3/files"

文件在没有名称的情况下上传到谷歌。否则，文件上传将失败并显示相同的通用代码:

Error Domain=com.alamofire.error Code=-6003 "Response status code was unacceptable: 400" UserInfo={NSLocalizedFailureReason=Response status code was unacceptable: 400}

我希望能够上传带有名称和可能还有其他参数的文件。我知道我正在以某种方式破坏分段上传，但我不知道我做错了什么。

  func postBinaryToGdriveSimple (token: String, callback: Bool -> Void){
var returnedId : String!
let path = NSBundle.mainBundle().pathForResource("drawing", ofType: "bin")

let bindata: NSData = NSData(contentsOfURL: NSURL(fileURLWithPath: path!))!
let parameters : [String: String] = ["title":"SomeFileName"]
let headers = ["Authorization": "Bearer \(token)"]
upload(
  .POST,
  "https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart",
  headers: headers,

  multipartFormData: { multipartFormData in
    // append file parameters to request
    for (key, value) in parameters {
      multipartFormData.appendBodyPart(data: value.dataUsingEncoding(NSUTF8StringEncoding)!, name: key)
    }
    // append binary file to request
    multipartFormData.appendBodyPart(data: bindata, name: "upload", fileName: "drawing.bin", mimeType: "application/octet-stream")

  },
  encodingCompletion: { encodingResult in
    switch encodingResult {
    case .Success(let upload, _, _):
      upload.progress { bytesWritten, totalBytesWritten, totalBytesExpectedToWrite in
        dispatch_async(dispatch_get_main_queue()) {
          let percent = (Float(totalBytesWritten) / Float(totalBytesExpectedToWrite))
          //progress(percent: percent)
          print ("................\(percent)")
        }
      }
      upload.validate()
      upload.responseJSON { response in
        switch response.result {
        case .Success(let data):
          print(response)
          print("Validation Successful")

          let json = JSON(data)
          returnedId = json[("id")].stringValue
          print("......id for uploaded file is \(returnedId)")

          callback(true)
        case .Failure(let error):
          print(error)
          print("Validation Bad")
          callback(false)
        }


      }
    case .Failure(_):
      callback(false)
    }
})
} // end of postBinaryToGdriveSimple

我想知道 Alamofire 创建多部分请求的方式是否有 Google Drive 不喜欢的地方。从 google api 站点来看，请求似乎需要具有 Alamofire 可能不会创建的某些参数，例如内容长度和边界设置...

POST /upload/drive/v3/files?uploadType=multipart HTTP/1.1
Host: www.googleapis.com
Authorization: Bearer your_auth_token
Content-Type: multipart/related; boundary=foo_bar_baz
Content-Length: number_of_bytes_in_entire_request_body

--foo_bar_baz
Content-Type: application/json; charset=UTF-8

{
 "name": "My File"
}

--foo_bar_baz
Content-Type: image/jpeg

JPEG data
--foo_bar_baz--

如果是这样，解决方法是什么？

Answer 1

仔细检查 Google 云端硬盘的 API 文档。

参数的关键字段似乎是“名称”(而不是“标题”)。

如果您想要额外的自定义文件属性，仅限于单个应用程序，请将“appProperties”添加到 json:

“应用程序属性”:{ “标题”:“随便”