Content-type öğesini SWURLSession kullanarak nasıl tanımlarım?

Question

Web api çağrısı yapmak için aşağıdaki koduma içerik türünü ayarlamak istiyorum. Eğer isteğin Content-Type ayarlamak istiyorsanız İçerik-type, kendi NSMutableURLRequest, sizin URL sağlayarak, setValue:forHTTPHeaderField: kullanılarak Content-Type başlığını belirtmek oluşturmak ve sonra da yerine dataTaskWithRequest ile isteği verebilir, application/json; charset=utf-8

let url = NSURL(string: "http:/api/jobmanagement/PlusContactAuthentication?email=\(usr)&userPwd=\(pwdCode)") 

println("URL: \(url)") 

let task = NSURLSession.sharedSession().dataTaskWithURL(url!) { 
    (data, response, error) in 
    println(NSString(data: data, encoding: NSUTF8StringEncoding)) 
} 

// task.setValue(<#value: AnyObject?#>, forKey: <#String#>) 
task.resume() 

Answer 1

olacak dataTaskWithURL'dan. Yani, Swift 2'de sen request.HTTPBody o JSON olarak ayarlanır ve bir POST isteği olduğunu belirtebilirsiniz:

let request = NSMutableURLRequest(URL: url!) 
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type") // the request is JSON 
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Accept")  // the expected response is also JSON 
request.HTTPMethod = "POST" 
request.updateBasicAuthForUser("test", password: "password1") 

let dictionary = ["email": usr, "userPwd": pwdCode] 
request.HTTPBody = try! NSJSONSerialization.dataWithJSONObject(dictionary, options: []) 

let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { data, response, error in 
    guard let data = data where error == nil else { 
     print(error)            // some fundamental network error 
     return 
    } 

    do { 
     let responseObject = try NSJSONSerialization.JSONObjectWithData(data, options: []) 
     print(responseObject) 
    } catch let jsonError { 
     print(jsonError) 
     print(String(data: data, encoding: NSUTF8StringEncoding)) // often the `data` contains informative description of the nature of the error, so let's look at that, too 
    } 
} 
task.resume() 

Swift 3'te eşdeğer kodudur:

var request = URLRequest(url: url!) 
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type") // the request is JSON 
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Accept")  // the expected response is also JSON 
request.httpMethod = "POST" 

let dictionary = ["email": usr, "userPwd": pwdCode] 
request.httpBody = try! JSONSerialization.data(withJSONObject: dictionary) 

let task = URLSession.shared.dataTask(with: request) { data, response, error in 
    guard let data = data, error == nil else { 
     print(error)         // some fundamental network error 
     return 
    } 

    do { 
     let responseObject = try JSONSerialization.jsonObject(with: data) 
     print(responseObject) 
    } catch let jsonError { 
     print(jsonError) 
     print(String(data: data, encoding: .utf8)) // often the `data` contains informative description of the nature of the error, so let's look at that, too 
    } 
} 
task.resume()