我正在使用一个使用多部分表单数据接受视频上传的 API。我想使用 NSURLSession.uploadTask （加上它的代表）来处理上传。
我的问题是我需要更改本地视频文件以使用我正在使用的 API，我创建了一个我想做的示例：
let localVideoURL = URL(string: "file://AGoodURL/video.mov")!
let apiURL = URL(string: "https://myServer.com/upload")
func uploadVideo() {
let config = URLSessionConfiguration.background(withIdentifier: "myUploads")
let session = URLSession(configuration: config, delegate: nil, delegateQueue: nil)
var request = NSMutableURLRequest(url: apiURL!)
request.httpMethod = "POST"
// create a new file from the local file + required api data
var boundary : String {
return "Boundary-\(UUID().uuidString)"
}
// what should be a new file and not an in memory data object, but how?
var data = Data()
// do I need to set these or will the uploadTaskWithFile class handle it?
data.append("--\(boundary)\r\n".data(using: .utf8)!)
data.append("Content-Disposition: form-data; name=\"video\"; filename=\"video.mov\"\r\n".data(using: .utf8)!)
// same question? does this need to be here?
data.append("Content-Type: video/quicktime\r\n\r\n".data(using: .utf8)!)
/** somehow get the data from the local url without loading it into memory */
// data.append(try! Data(contentsOf: localVideoURL)) /** not like this! */
data.append("\r\n".data(using: .utf8)!)
data.append("--\(boundary)--\r\n".data(using: .utf8)!)
// close the new file
// begin an uploadTask with the new file, use URLSessionDelegates.
session.uploadTask(with: request, fromFile: )
}
我将如何创建一个新的本地文件，如上所述添加字符串数据，附加本地视频文件并添加其余的字符串数据？这些文件可能非常大，因此将它们全部保存在磁盘上很重要。