在iOS中的NSURLRequest中訪問'日期'HTTP頭

Question

有沒有辦法在iOS中的NSURLRequest中訪問'Date'HTTP頭，例如在授權過程中使用它？ （例如http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html）

Answer 1

嘗試此代碼

let config = URLSessionConfiguration.default 
    let session = URLSession(configuration: config) 
    let url = URL(string:"https://johnsmith.s3.amazonaws.com")! 
    let request = NSMutableURLRequest(url: url) 
    request.timeoutInterval = 60 
    request.addValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type") 
    request.httpMethod = "GET" 
    request.addValue(" "AWS" + " " + AWSAccessKeyId + ":" + Signature", forHTTPHeaderField: "Authorization") 
    let task = session.dataTask(with: request as URLRequest) { (data, response, error) in 
     //  (data, response, error) in 
     if error != nil { 
      print(error!.localizedDescription) 
     } else { 
      do { 
       let json = try JSONSerialization.jsonObject(with: data! as Data, options: .allowFragments) 
       print("json data") 

      } catch { 
       print("error in JSONSerialization") 
      } 
     } 
    } 
    task.resume()