使用Swift通过REST API为youtube上传设置代码段数据

时间:2016-03-23 23:06:08

标签: swift rest video youtube alamofire

我可以使用以下代码通过REST API将视频成功上传到youtube:

func postVideoToYouTube(token: String, callback: Bool -> Void){

let headers = ["Authorization": "Bearer \(token)"]

let path = NSBundle.mainBundle().pathForResource("video", ofType: "mp4")
let videodata: NSData = NSData.dataWithContentsOfMappedFile(path!)! as! NSData
upload(
    .POST,
    "https://www.googleapis.com/upload/youtube/v3/videos?part=id",
    headers: headers,
    multipartFormData: { multipartFormData in
        multipartFormData.appendBodyPart(data: videodata, name: "video", fileName: "video.mp4", mimeType: "application/octet-stream")
    },
    encodingCompletion: { encodingResult in
        switch encodingResult {
        case .Success(let upload, _, _):
            upload.responseJSON { request, response, error in
                print(response)
                callback(true)
            }
        case .Failure(_):
            callback(false)
        }
    })
}

我现在想编辑上面的代码,以便在初始上传时设置一些snippet数据,特别是titledescription

我尝试使用与上述方法非常相似的替代Alamofire方法,只是将NSMutableURLRequest作为参数。我精心设计了我的代码段字典,并将其设置为可变请求的HTTPBody属性。视频上传仍然有效,但我的代码段的标题和说明值仍未设置。

如何在将视频上传到youtube时设置一些代码段信息?

3 个答案:

答案 0 :(得分:2)

在multipartFormData块中为参数值添加一行,如下所示(将代码放在视频项之前):

multipartFormData.appendBodyPart(data:"{'snippet':{'title' : 'TITLE_TEXT', 'description': 'DESCRIPTION_TEXT'}}".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"snippet", mimeType: "application/json")

邮政网址也应更改为part = snippet

https://www.googleapis.com/upload/youtube/v3/videos?part=snippet

.POST,
    "https://www.googleapis.com/upload/youtube/v3/videos?part=snippet",
    headers: headers,
    multipartFormData: { multipartFormData in
        multipartFormData.appendBodyPart(data:"{'snippet':{'title' : 'TITLE_TEXT', 'description': 'DESCRIPTION_TEXT'}}".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"snippet", mimeType: "application/json")
        multipartFormData.appendBodyPart(data: videodata, name: "video", fileName: "video.mp4", mimeType: "application/octet-stream")
},

答案 1 :(得分:2)

我能够使用片段数据上传视频的唯一方法是通过POST和PUT调用的组合。 POST 上传没有元数据的视频, PUT 编辑视频的元数据。这样做需要做几件事:

1. Enable the necessary scopes
    -https://www.googleapis.com/auth/youtube.upload for POST
    -https://www.googleapis.com/auth/youtube for PUT
2. Be mindful of the URL's you use for each request
    -https://www.googleapis.com/upload/youtube/v3/videos?part=snippet for POST
    -https://www.googleapis.com/youtube/v3/videos?part=snippet&key=\(ios_key) for PUT

现在,如果您正在使用Alamofire,则您的问题中包含的POST可以保持原样。对于PUT部分,您必须注意Alamofire希望如何传递参数:

request(<#T##method: Method##Method#>, <#T##URLString: URLStringConvertible##URLStringConvertible#>, parameters: <#T##[String : AnyObject]?#>, encoding: <#T##ParameterEncoding#>, headers: <#T##[String : String]?#>)

注意参数:&lt; [String:AnyObject]?&gt;这是完全您必须如何定义代码段字典:

let dictionarySnippet :Dictionary<String, AnyObject>  = [
  "title" : "something in the way",
  "description" : "is this finally gonna work?",
  "tags" : ["whisky","tango","fox"],
  "categoryId" : "1"
]

您还必须发送上传的视频ID(您可以在另一个词典中从POST中捕获该内容:

let dictionaryParameters :Dictionary<String, AnyObject> = [
            "id" : "\(returnedId)",
            "snippet" : dictionarySnippet,
          ]

最后,您现在可以发送PUT请求来更新您的视频元数据了:

let putRequest = request(.PUT, "https://www.googleapis.com/youtube/v3/videos?part=snippet&key=\(ios_key)", parameters: dictionaryParameters, encoding: .JSON , headers: headers)

答案 2 :(得分:0)

有关Qt / C ++示例代码,请参见https://gist.github.com/forderud/941e1d2014c43a0e3f5f0af1d7972075,该示例代码显示了如何将视频上传到YouTube,包括摘要元数据。 C ++当然不是Swift,但是应该类似于Swift的实现。