Как сделать HTTP Post запрос с телом JSON в Swift
Я пытаюсь сделать HTTP-запрос с телом JSON:
Как можно добавить NSdictionnary в тело HTTP-запроса.
Вот мой код, кажется, он не работает должным образом.
var entry1 = Response(IdQuestion: 6510,IdProposition: 10,Time: 30)
var entry2 = Response(IdQuestion: 8284,IdProposition: 10,Time: 30)
Responses.append(entry1)
Responses.append(entry2)
let list = Responses.map { $0.asDictionary }
let json = ["List":list,"IdSurvey":"102","IdUser":"iOSclient","UserInformation":"iOSClient"]
let data : NSData = NSKeyedArchiver.archivedDataWithRootObject(json)
NSJSONSerialization.isValidJSONObject(json)
let myURL = NSURL(string: "http://www.myserver.com")!
let request = NSMutableURLRequest(URL: myURL)
request.HTTPMethod = "POST"
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.HTTPBody = data
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
println(response)
// Your completion handler code here
}
task.resume()
19 ответов
Попробуй это,
// prepare json data
let json: [String: Any] = ["title": "ABC",
"dict": ["1":"First", "2":"Second"]]
let jsonData = try? JSONSerialization.data(withJSONObject: json)
// create post request
let url = URL(string: "http://httpbin.org/post")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
// insert json data to the request
request.httpBody = jsonData
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print(error?.localizedDescription ?? "No data")
return
}
let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [])
if let responseJSON = responseJSON as? [String: Any] {
print(responseJSON)
}
}
task.resume()
или попробуйте удобный способ Alamofire
Свифт 3
HTTP POST-запрос с использованием URLSession API в Swift 3.0 с обработкой ошибок
func submitAction(sender: AnyObject) {
//declare parameter as a dictionary which contains string as key and value combination.
let parameters = ["name": nametextField.text, "password": passwordTextField.text]
//create the url with NSURL
let url = NSURL(string: "http://MyServer.com/login")
//create the session object
let session = URLSession.shared
//now create the NSMutableRequest object using the url object
let request = NSMutableURLRequest(url: url! as URL)
request.httpMethod = "POST" //set http method as POST
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to nsdata object and set it as request body
} catch let error {
print(error.localizedDescription)
}
//HTTP Headers
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
//create dataTask using the session object to send data to the server
let task = session.dataTask(with: request as URLRequest, completionHandler: { data, response, error in
guard error == nil else {
return
}
guard let data = data else {
return
}
do {
//create json object from data
if let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String: AnyObject] {
print(json)
// handle json...
}
} catch let error {
print(error.localizedDescription)
}
})
task.resume()
}
Использование Alamofire:
let parameters = ["name": "username", "password": "password123"]
Alamofire.request("http://MyServer.com/api/login", method: .post, parameters: parameters, encoding: URLEncoding.httpBody)
HTTP-пост в Swift, фиксирующий ошибки
let json = [ Activity.KEY_IDSUBJECT : activity.idSubject, Activity.KEY_RECORDMODE : "3", Activity.KEY_LOCATION_LONGITUDE : "0",Activity.KEY_LOCATION_LATITUDE : "0", Activity.KEY_CHECKIN : String(activity.dateCheckIn), Activity.KEY_CHECKOUT : String(activity.dateCheckOut) ]
do {
let jsonData = try NSJSONSerialization.dataWithJSONObject(json, options: .PrettyPrinted)
// create post request
let url = NSURL(string: "https://...appspot.com/_ah/api/activityendpoint/v1/activity")!
let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
// insert json data to the request
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
request.HTTPBody = jsonData
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){ data, response, error in
if error != nil{
print("Error -> \(error)")
return
}
do {
let result = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? [String:AnyObject]
print("Result -> \(result)")
} catch {
print("Error -> \(error)")
}
}
task.resume()
return task
} catch {
print(error)
}
SWIFT 5 человек здесь:
let json: [String: Any] = ["key": "value"]
let jsonData = try? JSONSerialization.data(withJSONObject: json)
// create post request
let url = URL(string: "http://localhost:1337/postrequest/addData")! //PUT Your URL
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("\(String(describing: jsonData?.count))", forHTTPHeaderField: "Content-Length")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
// insert json data to the request
request.httpBody = jsonData
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print(error?.localizedDescription ?? "No data")
return
}
let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [])
if let responseJSON = responseJSON as? [String: Any] {
print(responseJSON) //Code after Successfull POST Request
}
}
task.resume()
Следующий код Swift 3 Playground показывает возможный способ решения вашей проблемы с помощью JSONSerialization
а также URLSession
:
import UIKit
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
let url = URL(string: "http://localhost:8080/new")!
let jsonDict = ["firstName": "Jane", "lastName": "Doe"]
let jsonData = try! JSONSerialization.data(withJSONObject: jsonDict, options: [])
var request = URLRequest(url: url)
request.httpMethod = "post"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = jsonData
let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
if let error = error {
print("error:", error)
return
}
do {
guard let data = data else { return }
guard let json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: AnyObject] else { return }
print("json:", json)
} catch {
print("error:", error)
}
}
task.resume()
let url = URL(string: "url")!
var request = URLRequest(url: url)
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.httpMethod = "POST"
let postString = "ChangeAccordingtoyourdata=\(paramOne)&ChangeAccordingtoyourdata2=\(paramTwo)"
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else { // check for fundamental networking error
print("error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
SVProgressHUD.showError(withStatus: "Request has not submitted successfully.\nPlease try after some time")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
SVProgressHUD.showSuccess(withStatus: "Request has submitted successfully.\nPlease wait for a while")
DispatchQueue.main.async {
// enter code
}
}
task.resume()
Идеальный ответ nRewik обновлен до 2019 года:
Составьте словарь:
let dic = [
"username":u,
"password":p,
"gems":g ]
Соберите это так:
var jsonData:Data?
do {
jsonData = try JSONSerialization.data(
withJSONObject: dic,
options: .prettyPrinted)
} catch {
print(error.localizedDescription)
}
Создайте запрос именно так, обратите внимание, что это "сообщение".
let url = URL(string: "https://blah.com/server/dudes/decide/this")!
var request = URLRequest(url: url)
request.setValue("application/json; charset=utf-8",
forHTTPHeaderField: "Content-Type")
request.setValue("application/json; charset=utf-8",
forHTTPHeaderField: "Accept")
request.httpMethod = "POST"
request.httpBody = jsonData
Затем отправьте, проверяя либо сетевую ошибку (отсутствие пропускной способности и т. Д.), Либо ответ об ошибке от сервера:
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
// check for fundamental networking error
print("fundamental networking error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {
// check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
К счастью, теперь это так просто.
Свифт 5.5
Начиная с Swift 5.5, у нас теперь есть еще одна альтернатива, использующаяasync
/:
// Form the POST request:
let url = URL(string: "http://example.com/login")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
// Use the async variant of URLSession to make an HTTP POST request:
let (data, response) = try await URLSession.shared.upload(for: request, from: requestData)
Полный пример:
struct LoginResponse: Decodable {
let id: String
let name: String
}
func login(_ username: String, _ password: String) async throws -> LoginResponse {
struct RequestData: Encodable {
let username: String
let password: String
}
// Encode data to JSON to send in the POST request body:
let encoder = JSONEncoder()
let requestData = try encoder.encode(RequestData(username: username, password: password))
// Form the POST request:
let url = URL(string: "http://example.com/login")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
// Use the async variant of URLSession to make an HTTP POST request:
let (data, response) = try await URLSession.shared.upload(for: request, from: requestData)
print("HTTPURLResponse:", response)
print("The response body is:", String(decoding: data, as: UTF8.self))
// Parse the JSON response:
return try JSONDecoder().decode(LoginResponse.self, from: data)
}
Применение
Вы должны вызывать его в асинхронном контексте (чтобы вы моглиawait
это). Один из способов — использоватьTask
:
Task {
do {
let loginResponse = try await login("user1", "mypassword")
print("Login successful for user with id:", loginResponse.id)
} catch {
print(error)
}
}
Вы можете сделать что-то вроде этого:
func HTTPPostJSON(url: String, data: NSData,
callback: (String, String?) -> Void) {
var request = NSMutableURLRequest(URL: NSURL(string: url)!)
request.HTTPMethod = "POST"
request.addValue("application/json",forHTTPHeaderField: "Content-Type")
request.addValue("application/json",forHTTPHeaderField: "Accept")
request.HTTPBody = data
HTTPsendRequest(request, callback: callback)
}
func HTTPsendRequest(request: NSMutableURLRequest,
callback: (String, String?) -> Void) {
let task = NSURLSession.sharedSession()
.dataTaskWithRequest(request) {
(data, response, error) -> Void in
if (error != nil) {
callback("", error.localizedDescription)
} else {
callback(NSString(data: data,
encoding: NSUTF8StringEncoding)! as String, nil)
}
}
task.resume()
}
//use
var data :Dictionary<String, AnyObject> = yourDictionaryData<--
var requestNSData:NSData = NSJSONSerialization.dataWithJSONObject(request, options:NSJSONWritingOptions(0), error: &err)!
HTTPPostJSON("http://yourPosturl..", data: requestNSData) { (response, error) -> Void in
if error != nil{
//error
return;
}
println(response);
}
Swift4 - решение Apple "POST" и "Codable"
Загрузка данных на веб-сайт с использованием request.httpmethod = "Post" и Codable Stucts:
@see: Листинг 2 Настройка запроса URL
let userlogin = User(username: username, password: password, deviceid:UIDevice.current.identifierForVendor!.uuidString)
guard let uploadData = try? JSONEncoder().encode(userlogin) else {
print("Error UploadData: ")
return
}
let urlUser = URL(string: APPURL.apiURL)!
var request = URLRequest(url: urlUser)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
var responseStatus = 0
let task = URLSession.shared.uploadTask(with: request, from: uploadData) { data, response, error in
if let error = error {
let code = (error as NSError).code
print("Error:\(code) : \(error.localizedDescription)")
completion(code)
return
}
guard let response = response as? HTTPURLResponse else {
print("Invalid response")
return
}
// do your response handling here ...
Библиотека не требуется, просто используйте
URLSession
вот пример:
let sampleData = ["key": "Value"]
var urlRequest = URLRequest(url: URL(string: "https://REPLACE.ME")!)
let urlSession = URLSession = URLSession(configuration: .default)
let encoder = JSONEncoder()
// inside a throwing function or wrap it in a doCatch block
let jsonData = try encoder.encode(sampleData)
urlRequest.httpMethod = "POST"
urlRequest.addValue("application/json",forHTTPHeaderField: "Content-Type")
urlRequest.httpBody = jsonData
let task = urlSession.dataTask(with: urlRequest) { data, response, error in
let statusCode = (response as? HTTPURLResponse)?.statusCode
print("♂️ \(statusCode)")
}
task.resume()
Комбинация нескольких ответов, найденных в моей попытке не использовать сторонние фреймворки, такие как Alamofire.
let body: [String: Any] = ["provider": "Google", "email": "emailaddress@gmail.com"]
let api_url = "https://erics.es/p/u"
let url = URL(string: api_url)!
var request = URLRequest(url: url)
do {
let jsonData = try JSONSerialization.data(withJSONObject: body, options: .prettyPrinted)
request.httpBody = jsonData
} catch let e {
print(e)
}
request.httpMethod = HTTPMethod.post.rawValue
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print(error?.localizedDescription ?? "No data")
return
}
let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [])
if let responseJSON = responseJSON as? [String: Any] {
print(responseJSON)
}
}
task.resume()
var request = URLRequest(url: URL(string: "http://yogpande.apphb.com/api/my/posttblhouse")!)
request.httpMethod = "POST"
let postString = "email=testname@gmail.com&password=1234567"
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print("error=(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
}
task.resume()
}
// подготавливаем данные json let mapDict = [ "1":"First", "2":"Second"]
let json = [ "title":"ABC" , "dict": mapDict ] as [String : Any]
let jsonData : NSData = NSKeyedArchiver.archivedData(withRootObject: json) as NSData
// create post request
let url = NSURL(string: "http://httpbin.org/post")!
let request = NSMutableURLRequest(url: url as URL)
request.httpMethod = "POST"
// insert json data to the request
request.httpBody = jsonData as Data
let task = URLSession.shared.dataTask(with: request as URLRequest){ data,response,error in
if error != nil{
return
}
do {
let result = try JSONSerialization.jsonObject(with: data!, options: []) as? [String:AnyObject]
print("Result",result!)
} catch {
print("Error -> \(error)")
}
}
task.resume()
Для
Codable
/
Encodable
введите в Swift 4+
Использовать
JSONEncoder
превратить объект в
Data
:
let jsonObject = ... // Encodable or Codable
guard let jsonData = try? JSONEncoder().encode(jsonObject) else {
fatalError("encoding error")
}
Затем установите этот закодированный объект как
httpBody
URL-запроса:
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = jsonData
import UIKit
class ViewController: UIViewController {
var getdata = NSMutableData()
@IBOutlet weak var password_txt: UITextField!
@IBOutlet weak var mobile_txt: UITextField!
@IBOutlet weak var email_txt: UITextField!
@IBOutlet weak var name_txt: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func RegAction(_ sender: UIButton) {
let url = URL(string: "https//.....")
var requrl = URLRequest(url: url!)
requrl.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "content_type")
requrl.httpMethod = "post"
let postString = "name=\(name_txt.text!)&email=\(email_txt.text!)&mobile=\(mobile_txt.text!)&password=\(password_txt.text!)"
print("poststring-->>",postString)
requrl.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: requrl){(data,response,error) in
let mydata = data
do{
print("mydata",mydata!)
do{
self.getdata.append(mydata!)
let jsondata = try JSONSerialization.jsonObject(with: self.getdata as Data, options: [])
print("jsondata-->",jsondata)
}
}
catch
{
print("error-->",error.localizedDescription)
}
};
task.resume()
}
}
`GET METHOD`
import UIKit
class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
var dataarray = [[String: Any]]()
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataarray.count
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 450.0
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
let item = dataarray[indexPath.row]
cell.name_txt.text = item["name"]as? String ?? ""
cell.pname_txt.text = item["realname"]as? String ?? ""
cell.team_txt.text = item["team"]as? String ?? ""
cell.firstapp_txt.text = item["firstappearance"]as? String ?? ""
cell.Createdby_txt.text = item["createdby"]as? String ?? ""
cell.Publisher_txt.text = item["publisher"]as? String ?? ""
if item["imageurl"]as? String ?? "" != ""{
let url = URL(string: item["imageurl"]as? String ?? "")
if url != nil{
let data = try? Data(contentsOf: url!) //make sure your image in this url does exist, otherwise unwrap in a if let check / try-catch
cell.imgvw.image = UIImage(data: data!)
}
}
return cell
}
@IBOutlet weak var apiTable: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func viewWillAppear(_ animated: Bool) {
guard let url = URL(string: "https://www.simplifiedcoding.net/demos/marvel/")
else {return}
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
guard let dataResponse = data,
error == nil else {
print(error?.localizedDescription ?? "Response Error")
return }
do{
//here dataResponse received from a network request
let jsonResponse = try JSONSerialization.jsonObject(with:
dataResponse, options: []) as? [[String:Any]] ?? [[:]]
print("jsonResponse---->",jsonResponse) //Response result
self.dataarray = jsonResponse
DispatchQueue.main.async {
self.apiTable.reloadData()
}
} catch let parsingError {
print("Error", parsingError)
}
}
task.resume()
}
}
Быстрое чистое решение
На самом деле вы можете написать JSON непосредственно в теле запроса.
let url = URL(string: "https://endpointURL")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
let jsonBody =
"""
{
"key": "value",
"key": "value"
}
"""
request.httpBody = Data(jsonBody.utf8)
URLSession.shared.dataTask(with: request) { data, response, error in
if let error = error {
print("Post Request Error: \(error.localizedDescription)")
return
}
guard let httpResponse = response as? HTTPURLResponse else {
print("Invalid Response received from the server")
return
}
print("Status Code: \(httpResponse.statusCode)")
guard let responseData = data else {
print("nil Data received from the server")
return
}
//Decode your response here
do {
if let data = try? JSONDecoder().decode(CustomType.self, from: responseData) {
print(data)
} else {
print("Error while decoding response")
throw URLError(.badServerResponse)
}
} catch let error {
print(error.localizedDescription)
}
}
.resume()
func fucntion() {
var parameters = [String:String]()
let apiToken = "Bearer \(ApiUtillity.sharedInstance.getUserData(key: "vAuthToken"))"
let headers = ["Vauthtoken":apiToken]
parameters = ["firstname":name,"lastname":last_name,"mobile":mobile_number,"email":emails_Address]
Alamofire.request(ApiUtillity.sharedInstance.API(Join: "user/edit_profile"), method: .post, parameters: parameters, encoding: URLEncoding.default,headers:headers).responseJSON { response in
debugPrint(response)
if let json = response.result.value {
let dict:NSDictionary = (json as? NSDictionary)!
print(dict)
// print(response)
let StatusCode = dict.value(forKey: "status") as! Int
if StatusCode==200
{
ApiUtillity.sharedInstance.dismissSVProgressHUDWithSuccess(success: "Success")
let UserData = dict.value(forKey: "data") as! NSDictionary
print(UserData)
}
else if StatusCode==401
{
let ErrorDic:NSDictionary = dict.value(forKey: "message") as! NSDictionary
let ErrorMessage = ErrorDic.value(forKey: "error") as! String
}
else
{
let ErrorDic:NSDictionary = dict.value(forKey: "message") as! NSDictionary
let ErrorMessage = ErrorDic.value(forKey: "error") as! String
}
}
else
{
ApiUtillity.sharedInstance.dismissSVProgressHUDWithError(error: "Something went wrong")
}
}
var request = URLRequest(url: URL(string: "your URL")!)
request.httpMethod = "POST"
let postString = String(format: "email=%@&lang=%@", arguments: [txt_emailVirify.text!, language!])
print(postString)
emailString = txt_emailVirify.text!
request.httpBody = postString.data(using: .utf8)
request.addValue("delta141forceSEAL8PARA9MARCOSBRAHMOS", forHTTPHeaderField: "Authorization")
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil
else
{
print("error=\(String(describing: error))")
return
}
do
{
let dictionary = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as! NSDictionary
print(dictionary)
let status = dictionary.value(forKey: "status") as! String
let sts = Int(status)
DispatchQueue.main.async()
{
if sts == 200
{
print(dictionary)
}
else
{
self.alertMessageOk(title: self.Alert!, message: dictionary.value(forKey: "message") as! String)
}
}
}
catch
{
print(error)
}
}
task.resume()