Send JSON data to server? - ios

I have this code in my app delegate:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
self.post(["data":"tes"], url: "pandubaraja.esy.es/test.php") { (succeeded: Bool, msg: String) -> () in
var alert = UIAlertView(title: "Success!", message: msg, delegate: nil, cancelButtonTitle: "Okay.")
if(succeeded) {
alert.title = "Success!"
alert.message = msg
}
else {
alert.title = "Failed :("
alert.message = msg
}
// Move to the UI thread
dispatch_async(dispatch_get_main_queue(), { () -> Void in
// Show the alert
alert.show()
})
}
return true
}
func post(params : Dictionary<String, String>, url : String, postCompleted : (succeeded: Bool, msg: String) -> ()) {
var request = NSMutableURLRequest(URL: NSURL(string: "pandubaraja.esy.es/test.php")!)
var session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
var err: NSError?
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(params, options: nil, error: &err)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
println("Response: \(response)")
var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
println("Body: \(strData)")
var err: NSError?
var json = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &err) as? NSDictionary
var msg = "No message"
// Did the JSONObjectWithData constructor return an error? If so, log the error to the console
if(err != nil) {
println(err!.localizedDescription)
let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
println("Error could not parse JSON: '\(jsonStr)'")
postCompleted(succeeded: false, msg: "Error")
}
else {
// The JSONObjectWithData constructor didn't return an error. But, we should still
// check and make sure that json has a value using optional binding.
if let parseJSON = json {
// Okay, the parsedJSON is here, let's get the value for 'success' out of it
if let success = parseJSON["success"] as? Bool {
println("Succes: \(success)")
postCompleted(succeeded: success, msg: "Logged in.")
}
return
}
else {
// Woa, okay the json object was nil, something went wrong. Maybe the server isn't running?
let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
println("Error could not parse JSON: \(jsonStr)")
postCompleted(succeeded: false, msg: "Error")
}
}
})
task.resume()
}
andIi already have the data when I clicked a button, and it shows on console (println) but I still confuse how I can send it to the server
this is the code for sending data or you can say, printing data on console
import UIKit
class SendData: UIViewController, PiechartDelegate{
#IBOutlet weak var Kirim: UIImageView!
var total: CGFloat = 40
func tapGesture(gesture: UIGestureRecognizer) {
if let Kirim = gesture.view as? UIImageView { // if you subclass UIImageView, then change "UIImageView" to your subclass
println(personaldata.data)
for (var i = 0; i < Nutritionmenu.data.count; i++) {
println(Nutritionmenu.data[i]);
}
for (var i = 0; i < Activitymenu.dataact.count; i++) {
println(Activitymenu.dataact[i]);
}
}
}
override func viewDidLoad() {
super.viewDidLoad()
let tapGesture = UITapGestureRecognizer(target: self, action: "tapGesture:")
Kirim.addGestureRecognizer(tapGesture)
Kirim.userInteractionEnabled = true
this is the data that I want to send to the server but when I compile, it always says error instead of success!

Related

Application crash when adhoc distribute but doesn't crash when install with XCode

I have an Application and when ever i install the app via itunes/Diawi adhoc distribution it crashes but doesn't crash when i install the app via XCODE.
MY CRASH REPORT..
Thread 0 Crashed:
0 Vabo 0x00000001000bb07c specialized AppDelegate.registerDeviceForPushNotification(UIApplication) -> () (AppDelegate.swift:214)
1 Vabo 0x00000001000ab260 ViewController.(connectToWebWith(String, password : String) -> ()).(closure #2).(closure #3) (ViewController.swift:265)
Swift method of Crash number 1:
func registerDeviceForPushNotification(application:UIApplication) -> Void {
let settings: UIUserNotificationSettings = UIUserNotificationSettings.init(forTypes: [.Alert,.Badge,.Sound], categories: nil)
self.pushNotificationToken = FIRInstanceID.instanceID().token()!
let userID = self.userData["id"] as! NSNumber
print("InstanceID token: \(self.pushNotificationToken)")
self.registerDeviceOnServerWith(self.pushNotificationToken, userID: userID)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()
}
func registerDeviceOnServerWith(token:String, userID:NSNumber) -> Void {
let params = ["api_token":token, "user_id":userID , "type":"iOS"]
// params.setValue(username, forKey: "email")
// params.setValue(password, forKey: "password")
let urlString = Constants.kMainURL + Constants.kRegisterDeviceToken;
let request = NSMutableURLRequest(URL: NSURL(string: urlString)!)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
do {
request.HTTPBody = try NSJSONSerialization.dataWithJSONObject(params, options: .PrettyPrinted)
} catch {
//handle error. Probably return or mark function as throws
print(error)
return
}
request.addValue(self.tokenID as String, forHTTPHeaderField: "token")
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
// handle error
guard error == nil else {
return
}
print("Response: \(response)")
let strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Body: \(strData)")
let json: NSDictionary?
do {
json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableLeaves) as? NSDictionary
} catch let dataError {
// Did the JSONObjectWithData constructor return an error? If so, log the error to the console
print(dataError)
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: '\(jsonStr)'")
// return or throw?
return
}
// The JSONObjectWithData constructor didn't return an error. But, we should still
// check and make sure that json has a value using optional binding.
if let parseJSON = json {
// Okay, the parsedJSON is here, let's get the value for 'success' out of it
let success:NSString = (parseJSON["status"] as? NSString)!
if success.isEqualToString("Success"){
print("APNS is Registeration is : \(success)")
}else{
self.registerDeviceOnServerWith(token, userID: userID)
// Status Failed
}
}
else {
// Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
}
})
task.resume()
}
Method of Crash Number 2:
func connectToWebWith(username:String, password:String) -> Void {
self.startLoadingAnimator()
let params = ["email":username, "password":password]
// params.setValue(username, forKey: "email")
// params.setValue(password, forKey: "password")
let urlString = Constants.kMainURL + Constants.kSignInURL;
let request = NSMutableURLRequest(URL: NSURL(string: urlString)!)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
do {
request.HTTPBody = try NSJSONSerialization.dataWithJSONObject(params, options: .PrettyPrinted)
} catch {
dispatch_async(dispatch_get_main_queue(), {
self.stopLoadingAnimator()
let alertView = UIAlertView.init(title: "Error", message: "Failed to authenticate", delegate: nil, cancelButtonTitle: "OK")
alertView.show()
})
//handle error. Probably return or mark function as throws
print(error)
return
}
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
// handle error
guard error == nil else {
dispatch_async(dispatch_get_main_queue(), {
self.stopLoadingAnimator()
let alertView = UIAlertView.init(title: "Error", message: "Couldn't establish connection", delegate: nil, cancelButtonTitle: "OK")
alertView.show()
})
return
}
print("Response: \(response)")
let json: NSDictionary?
do {
json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableLeaves) as? NSDictionary
} catch let dataError {
// Did the JSONObjectWithData constructor return an error? If so, log the error to the console
print(dataError)
dispatch_async(dispatch_get_main_queue(), {
self.stopLoadingAnimator()
let alertView = UIAlertView.init(title: "Error", message: "Failed to authenticate", delegate: nil, cancelButtonTitle: "OK")
alertView.show()
})
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: '\(jsonStr)'")
// return or throw?
return
}
self.stopLoadingAnimator()
// The JSONObjectWithData constructor didn't return an error. But, we should still
// check and make sure that json has a value using optional binding.
if let parseJSON = json {
print("JSON = \(parseJSON)")
// Okay, the parsedJSON is here, let's get the value for 'success' out of it
let success:NSString = (parseJSON["status"] as? NSString)!
if success.isEqualToString("Success"){
print("Succes: \(success)")
dispatch_async(dispatch_get_main_queue(), {
let userDefault = NSUserDefaults.standardUserDefaults()
userDefault.setValue(username, forKey: Constants.kVaboEmail)
userDefault.synchronize()
userDefault.setValue(password, forKey: Constants.kVaboPassword)
userDefault.synchronize()
userDefault.setBool(true, forKey: Constants.kIsLoggedIn)
userDefault.synchronize()
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
appDelegate.tokenID = (parseJSON["token"] as? NSString)!
let array = parseJSON["userData"] as! NSArray
appDelegate.userData = array.objectAtIndex(0) as! NSDictionary
appDelegate.userDidLoggedIn()
})
}else{
let errorString = parseJSON["messageData"] as! String
dispatch_async(dispatch_get_main_queue(), {
let alertView = UIAlertView.init(title: "Vabo", message: errorString, delegate: nil, cancelButtonTitle: "Dismiss")
alertView.show()
})
}
}
else {
// Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: \(jsonStr)")
dispatch_async(dispatch_get_main_queue(), {
self.stopLoadingAnimator()
let alertView = UIAlertView.init(title: "Error", message: "Server Response Failed", delegate: nil, cancelButtonTitle: "OK")
alertView.show()
})
}
})
task.resume()
}
P.S
The iPhone on the app give crash has iOS 10.1,
While it runs perfectly on iOS 9.3.5
From the log you provided it's not clear which line is the 214th. (AppDelegate.swift:214) and the reason for the crash is also missing from the log.
But I see you are using force cast a couple of places, I would make sure that those values actually exist when you try to access them. I suggest to use guard statements instead of force casting:
func registerDeviceForPushNotification(application:UIApplication) -> Void {
let settings: UIUserNotificationSettings = UIUserNotificationSettings.init(forTypes: [.Alert,.Badge,.Sound], categories: nil)
guard let token = FIRInstanceID.instanceID().token(), let userID = self.userData["id"] as? NSNumber {
// You might want to log something here
return
}
print("InstanceID token: \(self.pushNotificationToken)")
self.registerDeviceOnServerWith(self.pushNotificationToken, userID: userID)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()
}
Update:
If you take a look on the documentation of the UIUserNotificationSettings you can see it has been deprecated in iOS 10. You should use the UNUserNotificationCenter on iOS 10:
let center = UNUserNotificationCenter.currentNotificationCenter()
center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in
// Enable or disable features based on authorization.
}
application.registerForRemoteNotifications()
You can find more information here and here

Parsing the JSON Data in Swift 2

I am parsing the data and I am getting the responseString also.But my problem is I want to convert it into dictionary and then I want to get the values from that jsonObject.
But I am unable to get that.
My Code is as follows
func loginRequest(url:String, withParams params: [String: String?], postCompleted : (succeeded: Bool, msg: String) -> ()){
let request = NSMutableURLRequest(URL: NSURL(string: url)!)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
var err: NSError?
var bodyData = ""
for (key,value) in params{
if (value == nil){ continue }
let scapedKey = key.stringByAddingPercentEncodingWithAllowedCharacters(
.URLHostAllowedCharacterSet())!
let scapedValue = value!.stringByAddingPercentEncodingWithAllowedCharacters(
.URLHostAllowedCharacterSet())!
bodyData += "\(scapedKey)=\(scapedValue)&"
}
request.HTTPBody = bodyData.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)
let task = session.dataTaskWithRequest(request,
completionHandler: {data, response, error -> Void in
let dataString = NSString(data: data!, encoding: NSUTF8StringEncoding)
postCompleted(succeeded: true, msg: dataString! as String)
print(dataString!)
if let datas = dataString!.dataUsingEncoding(NSUTF8StringEncoding) {
do{
let json = try NSJSONSerialization.JSONObjectWithData(datas, options: []) as? [String:AnyObject]
//return json
print(json)
}
catch
{
print("Something went wrong")
}
}
})
task.resume()
}
I am calling that method like this
self.loginRequest("http://stream.gsr-india.com:8080/pgn_service/REST/WebService/GetUserDetails",
withParams: ["first_name":firstNameTextField.text,"last_name":lastNameTextField.text , "application_id":uniqueIdTextField.text])
{
(succeeded: Bool, msg: String) -> () in
if(succeeded) {
if msg == "0"
{
//Incorrect data...
}
else
{
//The login it's ok...
}
}
}
Can anyone Please help me to resolve that.
Thanks In Advance.
Change method declaration to
func loginRequest(url:String, withParams params: [String: String?], postCompleted : (succeeded: Bool, msg: NSDictionary?) -> ()){
then change the task handler to
let task = session.dataTaskWithRequest(request,
completionHandler: {data, response, error -> Void in
let dataString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print(dataString!)
do{
let json = try NSJSONSerialization.JSONObjectWithData(datas, options: []) as? [String:AnyObject]
postCompleted(succeeded: true, msg: json)
print(json)
}
catch {
print("Something went wrong")
}
}
})
change the callback to
(succeeded: Bool, msgDict: NSDictionary?) -> () in
if let dict = msgDict {
// call any value like dict["error"] etc
}

Calling a function and wait for its completion

i have this class and its func
class DataUsuarios {
func update(completionHandler : ((isResponse : Array<JSON>) -> Void)) {
//CODE
completionHandler(isResponse: jsn)
}
}
and i call it with this
let data = DataUsuarios()
data.update{(isResponse) -> Void in
self.datos = isResponse
}
and it works as it should..
Now i have this class and function that i made
import Foundation
class Post{
func makeRequest(param : String, url : String, completionHandler : ((succeeded: Bool, msg: String? , crypted : String?) -> Void)) {
let request = NSMutableURLRequest(URL: NSURL(string: url)!)
let params : Dictionary<String, String> = ["VAL": param]
let session = NSURLSession.sharedSession()
session.configuration.timeoutIntervalForRequest = 3 //3 segundos timeoutRequest
session.configuration.timeoutIntervalForResource = 5 //5 segundos timeoutResource
request.HTTPMethod = "POST"
do{
request.HTTPBody = try NSJSONSerialization.dataWithJSONObject(params, options: .PrettyPrinted)
}catch let err as NSError {
print(err.localizedDescription)
print("Error could not make request'")
completionHandler(succeeded: false, msg: "Error al interpretar JSON" , crypted: nil)
}
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
print("Response: \(response)")
let strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Body: \(strData)")
var json : NSDictionary?
do{
json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableLeaves) as? NSDictionary
}catch let err as NSError {
print(err.localizedDescription)
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: '\(jsonStr)'")
completionHandler(succeeded: false, msg: "Error en POST", crypted: nil)
}
if let parseJSON = json {
if let encrypted = parseJSON["encriptado"] as? String {
let decrypted = encrypted.aesDecrypt()
let datosDecrypted: NSData = decrypted.dataUsingEncoding(NSUTF8StringEncoding)!
var jsonLogin:NSDictionary!
do{
jsonLogin = try NSJSONSerialization.JSONObjectWithData(datosDecrypted , options:NSJSONReadingOptions.MutableContainers ) as! NSDictionary
}catch let err as NSError {
print(err.localizedDescription)
print("Error could not make request'")
completionHandler(succeeded: false, msg: "Error" , crypted: nil)
}
if ( jsonLogin.valueForKey("success") != nil ) {
if let successNumber = jsonLogin.valueForKey("success") as! Int! {
print("Success: " , successNumber);
completionHandler(succeeded: true, msg: nil, crypted: decrypted)
}
}
completionHandler(succeeded: false, msg: "Error Success", crypted: nil)
}
}
else {
// Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: \(jsonStr)")
completionHandler(succeeded: false, msg: "Error", crypted: nil)
}
})
task.resume()
}
}
but i don't know how to call it and get the completionHandler values
let post = Post()
post.makeRequest(cad, url: Constants.Static.server+"url.php" { succeeded, msg, crypted) -> Void in
}
Hope you can help! :)
Perhaps you want dispatch_async()?:
func makeRequest(param : String, url : String, completionHandler : ((succeeded: Bool, msg: String? , crypted : String?) -> ())) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), {
println("This is run on the background queue")
//CODE
dispatch_async(dispatch_get_main_queue(), 0), {
println("This is run on the main queue, after the previous block")
completionHandler(succeeded: true, msg: nil, crypted: decrypted)
}
}
}
Ok, i found it..
post.makeRequest(cad, url: Constants.Static.server+"url.php" ){(succedded : Bool, msg : String?, crypted:String? ) in
if(succedded){
// CODE USING CRYPTED
}else {
// CODE USING MSG
}
}

Can't get value from Google-Books JSON API

I'm using a bar code scanner to get data on a scanned book using the google books api. I successfully call the API and get a JSON object back.
I'm trying to get the book title which follows the path items.volumeInfo.title.
When I call valueForPath on the JSON object returned by the API and attempt to print it (the title), I end up printing:
Optional((
"A Dance with Dragons"
))
I can't seem to figure out how to actually get the string out of the printed optional. I tried as! String and jsonResult.valueForKeyPath("items.volumeInfo.title")!, but the first simply complained to me and the second only removed the optional and outside set of parentheses.
func getBookInfo(isbn: String) {
var url: String = "https://www.googleapis.com/books/v1/volumes?q=isbn:" + isbn;
var request: NSMutableURLRequest = NSMutableURLRequest()
request.URL = NSURL(string: url)
request.HTTPMethod = "GET"
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue(), completionHandler:{ (response:NSURLResponse!, data: NSData!, error: NSError!) -> Void in
var error: AutoreleasingUnsafeMutablePointer<NSError?> = nil
let jsonResult: NSDictionary! = NSJSONSerialization.JSONObjectWithData(data, options:NSJSONReadingOptions.MutableContainers, error: error) as? NSDictionary
if (jsonResult != nil) {
println(jsonResult.valueForKeyPath("items.volumeInfo.title"))
//self.json.setValue(jsonResult.valueForKeyPath("items.volumeInfo.title")!, forKey: "title")
} else {
GlobalConstants.AlertMessage.displayAlertMessage("Error fetching data from barcode, please try again.", view: self)
}
})
}
The response you get from the API is an array of titles.
I suggest using if let to unwrap the Optional value you get from KVC, and typecasting the result as a Swift array of Strings.
Swift 1
func getBookInfo(isbn: String) {
var url: String = "https://www.googleapis.com/books/v1/volumes?q=isbn:" + isbn
var request: NSMutableURLRequest = NSMutableURLRequest()
request.URL = NSURL(string: url)
request.HTTPMethod = "GET"
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue(), completionHandler:{ (response:NSURLResponse!, data: NSData!, error: NSError!) -> Void in
var error: AutoreleasingUnsafeMutablePointer<NSError?> = nil
if let jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: nil, error: error) as? NSDictionary {
if let arrayOfTitles = jsonResult.valueForKeyPath("items.volumeInfo.title") as? [String] {
let titles = ", ".join(arrayOfTitles)
println(titles)
} else {
// error: no title found
}
} else {
GlobalConstants.AlertMessage.displayAlertMessage("Error fetching data from barcode, please try again.", view: self)
}
})
}
getBookInfo("0553283685") // prints "Hyperion"
Swift 2
For this version we're using NSURLSession because NSURLConnection is now deprecated.
func getBookInfo(isbn: String) {
let urlString = "https://www.googleapis.com/books/v1/volumes?q=isbn:" + isbn
if let url = NSURL(string: urlString) {
NSURLSession.sharedSession().dataTaskWithURL(url, completionHandler: {data, _, error -> Void in
if let error = error {
print(error.localizedDescription)
} else {
if let data = data,
jsonResult = try? NSJSONSerialization.JSONObjectWithData(data, options: []),
arrayOfTitles = jsonResult.valueForKeyPath("items.volumeInfo.title") as? [String] {
let titles = arrayOfTitles.joinWithSeparator(", ")
print(titles)
} else {
GlobalConstants.AlertMessage.displayAlertMessage("Error fetching data from barcode, please try again.", view: self)
}
}
}).resume()
}
}
getBookInfo("0553283685") // prints "Hyperion"
Swift 3
Same as Swift 2 with some syntax changes. I've also added the "authors" example, and I'm now using guard. Just for the sake of showing something different from the previous example.
func getBookInfo(isbn: String) {
guard let url = URL(string: "https://www.googleapis.com/books/v1/volumes?q=isbn:\(isbn)") else {
print("the url is not valid")
return
}
URLSession.shared().dataTask(with: url, completionHandler: {data, response, error -> Void in
guard error == nil else {
print(response)
print(error!.localizedDescription)
return
}
guard let data = data else {
print("no error but no data")
print(response)
return
}
guard let jsonResult = try? JSONSerialization.jsonObject(with: data, options: []) else {
print("the JSON is not valid")
return
}
if let arrayOfTitles = jsonResult.value(forKeyPath: "items.volumeInfo.title") as? [String] {
print(arrayOfTitles)
}
if let arrayOfAuthors = jsonResult.value(forKeyPath: "items.volumeInfo.authors") as? [[String]] {
print(arrayOfAuthors)
}
}).resume()
}
getBookInfo(isbn: "0553283685")

Make REST API call in Swift

I'm trying to use Swift to make a GET call to a REST API, and have tried to follow numerous tutorials, but can't figure it out. Either because I cannot figure out how to translate all the Obj-C to Swift, or because half of the methods n' such are deprecated. Does anyone know how to make the call, and parse returned JSON data?
Swift 5 & 4
let params = ["username":"john", "password":"123456"] as Dictionary<String, String>
var request = URLRequest(url: URL(string: "http://localhost:8080/api/1/login")!)
request.httpMethod = "POST"
request.httpBody = try? JSONSerialization.data(withJSONObject: params, options: [])
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
let session = URLSession.shared
let task = session.dataTask(with: request, completionHandler: { data, response, error -> Void in
print(response!)
do {
let json = try JSONSerialization.jsonObject(with: data!) as! Dictionary<String, AnyObject>
print(json)
} catch {
print("error")
}
})
task.resume()
You can do like this :
var url : String = "http://google.com?test=toto&test2=titi"
var request : NSMutableURLRequest = NSMutableURLRequest()
request.URL = NSURL(string: url)
request.HTTPMethod = "GET"
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue(), completionHandler:{ (response:NSURLResponse!, data: NSData!, error: NSError!) -> Void in
var error: AutoreleasingUnsafeMutablePointer<NSError?> = nil
let jsonResult: NSDictionary! = NSJSONSerialization.JSONObjectWithData(data, options:NSJSONReadingOptions.MutableContainers, error: error) as? NSDictionary
if (jsonResult != nil) {
// process jsonResult
} else {
// couldn't load JSON, look at error
}
})
EDIT : For people have problem with this maybe your JSON stream is an
array [] and not an object {} so you have to change jsonResult to
NSArray instead of NSDictionary
I think the NSURLSession api fits better in this situation. Because if you write swift code your project target is at least iOS 7 and iOS 7 supports NSURLSession api. Anyway here is the code
let url = "YOUR_URL"
NSURLSession.sharedSession().dataTaskWithURL(NSURL(string: url)) { data, response, error in
// Handle result
}.resume()
Here is the complete code for REST API requests using NSURLSession in swift
For GET Request
let configuration = NSURLSessionConfiguration .defaultSessionConfiguration()
let session = NSURLSession(configuration: configuration)
let urlString = NSString(format: "your URL here")
print("get wallet balance url string is \(urlString)")
//let url = NSURL(string: urlString as String)
let request : NSMutableURLRequest = NSMutableURLRequest()
request.URL = NSURL(string: NSString(format: "%#", urlString) as String)
request.HTTPMethod = "GET"
request.timeoutInterval = 30
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let dataTask = session.dataTaskWithRequest(request) {
(let data: NSData?, let response: NSURLResponse?, let error: NSError?) -> Void in
// 1: Check HTTP Response for successful GET request
guard let httpResponse = response as? NSHTTPURLResponse, receivedData = data
else {
print("error: not a valid http response")
return
}
switch (httpResponse.statusCode)
{
case 200:
let response = NSString (data: receivedData, encoding: NSUTF8StringEncoding)
print("response is \(response)")
do {
let getResponse = try NSJSONSerialization.JSONObjectWithData(receivedData, options: .AllowFragments)
EZLoadingActivity .hide()
// }
} catch {
print("error serializing JSON: \(error)")
}
break
case 400:
break
default:
print("wallet GET request got response \(httpResponse.statusCode)")
}
}
dataTask.resume()
For POST request ...
let configuration = NSURLSessionConfiguration .defaultSessionConfiguration()
let session = NSURLSession(configuration: configuration)
let params = ["username":bindings .objectForKey("username"), "provider":"walkingcoin", "securityQuestion":securityQuestionField.text!, "securityAnswer":securityAnswerField.text!] as Dictionary<String, AnyObject>
let urlString = NSString(format: “your URL”);
print("url string is \(urlString)")
let request : NSMutableURLRequest = NSMutableURLRequest()
request.URL = NSURL(string: NSString(format: "%#", urlString)as String)
request.HTTPMethod = "POST"
request.timeoutInterval = 30
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
request.HTTPBody = try! NSJSONSerialization.dataWithJSONObject(params, options: [])
let dataTask = session.dataTaskWithRequest(request)
{
(let data: NSData?, let response: NSURLResponse?, let error: NSError?) -> Void in
// 1: Check HTTP Response for successful GET request
guard let httpResponse = response as? NSHTTPURLResponse, receivedData = data
else {
print("error: not a valid http response")
return
}
switch (httpResponse.statusCode)
{
case 200:
let response = NSString (data: receivedData, encoding: NSUTF8StringEncoding)
if response == "SUCCESS"
{
}
default:
print("save profile POST request got response \(httpResponse.statusCode)")
}
}
dataTask.resume()
I hope it works.
edited for swift 2
let url = NSURL(string: "http://www.test.com")
let task = NSURLSession.sharedSession().dataTaskWithURL(url!) {(data, response, error) in
print(NSString(data: data!, encoding: NSUTF8StringEncoding))
}
task.resume()
Swift 4 - GET request
var request = URLRequest(url: URL(string: "http://example.com/api/v1/example")!)
request.httpMethod = "GET"
URLSession.shared.dataTask(with: request, completionHandler: { data, response, error -> Void in
do {
let jsonDecoder = JSONDecoder()
let responseModel = try jsonDecoder.decode(CustomDtoClass.self, from: data!)
print(responseModel)
} catch {
print("JSON Serialization error")
}
}).resume()
Don't forget to configure App Transport Security Settings to add your domain to the exceptions and allow insecure http requests if you're hitting endpoints without using HTTPS.
You can use a tool like http://www.json4swift.com/ to autogenerate your Codeable Mappings from your JSON responses.
In swift 3.3 and 4. I crated APIManager class with two public methods. Just pass required parameter, api name and request type. You will get response then pass it to the closure.
import UIKit
struct RequestType {
static let POST = "POST"
static let GET = "GET"
}
enum HtttpType: String {
case POST = "POST"
case GET = "GET"
}
class APIManager: NSObject {
static let sharedInstance: APIManager = {
let instance = APIManager()
return instance
}()
private init() {}
// First Method
public func requestApiWithDictParam(dictParam: Dictionary<String,Any>, apiName: String,requestType: String, isAddCookie: Bool, completionHendler:#escaping (_ response:Dictionary<String,AnyObject>?, _ error: NSError?, _ success: Bool)-> Void) {
var apiUrl = “” // Your api url
apiUrl = apiUrl.appendingFormat("%#", apiName)
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)
let url = URL(string: apiUrl)!
let HTTPHeaderField_ContentType = "Content-Type"
let ContentType_ApplicationJson = "application/json"
var request = URLRequest.init(url: url)
request.timeoutInterval = 60.0
request.cachePolicy = URLRequest.CachePolicy.reloadIgnoringLocalCacheData
request.addValue(ContentType_ApplicationJson, forHTTPHeaderField: HTTPHeaderField_ContentType)
request.httpMethod = requestType
print(apiUrl)
print(dictParam)
let dataTask = session.dataTask(with: request) { (data, response, error) in
if error != nil {
completionHendler(nil, error as NSError?, false)
} do {
let resultJson = try JSONSerialization.jsonObject(with: data!, options: []) as? [String:AnyObject]
print("Request API = ", apiUrl)
print("API Response = ",resultJson ?? "")
completionHendler(resultJson, nil, true)
} catch {
completionHendler(nil, error as NSError?, false)
}
}
dataTask.resume()
}
// Second Method
public func requestApiWithUrlString(param: String, apiName: String,requestType: String, isAddCookie: Bool, completionHendler:#escaping (_ response:Dictionary<String,AnyObject>?, _ error: NSError?, _ success: Bool)-> Void ) {
var apiUrl = "" // Your api url
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)
var request: URLRequest?
if requestType == "GET" {
apiUrl = String(format: "%#%#&%#", YourAppBaseUrl,apiName,param)
apiUrl = apiUrl.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
print("URL=",apiUrl)
let url = URL(string: apiUrl)!
request = URLRequest.init(url: url)
request?.httpMethod = "GET"
} else {
apiUrl = String(format: "%#%#", YourAppBaseUrl,apiName)
apiUrl = apiUrl.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
print("URL=",apiUrl)
let bodyParameterData = param.data(using: .utf8)
let url = URL(string: apiUrl)!
request = URLRequest(url: url)
request?.httpBody = bodyParameterData
request?.httpMethod = "POST"
}
request?.timeoutInterval = 60.0
request?.cachePolicy = URLRequest.CachePolicy.reloadIgnoringLocalCacheData
request?.httpShouldHandleCookies = true
let dataTask = session.dataTask(with: request!) { (data, response, error) in
if error != nil {
completionHendler(nil, error as NSError?, false)
} do {
if data != nil {
let resultJson = try JSONSerialization.jsonObject(with: data!, options: []) as? [String:AnyObject]
print("Request API = ", apiUrl)
print("API Response = ",resultJson ?? "")
completionHendler(resultJson, nil, true)
} else {
completionHendler(nil, error as NSError?, false)
}
} catch {
completionHendler(nil, error as NSError?, false)
}
}
dataTask.resume()
}
}
// Here is example of calling Post API from any class
let bodyParameters = String(format: "appid=%#&appversion=%#","1","1")
APIManager.sharedInstance.requestApiWithUrlString(param: bodyParameters, apiName: "PASS_API_NAME", requestType: HtttpType.POST.rawValue, isAddCookie: false) { (dictResponse, error, success) in
if success {
if let dictMessage = dictResponse?["message"] as? Dictionary<String, AnyObject> {
// do you work
}
} else {
print("Something went wrong...")
}
}
}
/// Or just use simple function
func dataRequest() {
let urlToRequest = "" // Your API url
let url = URL(string: urlToRequest)!
let session4 = URLSession.shared
let request = NSMutableURLRequest(url: url)
request.httpMethod = "POST"
request.cachePolicy = NSURLRequest.CachePolicy.reloadIgnoringCacheData
let paramString = "data=Hello"
request.httpBody = paramString.data(using: String.Encoding.utf8)
let task = session4.dataTask(with: request as URLRequest) { (data, response, error) in
guard let _: Data = data, let _: URLResponse = response, error == nil else {
print("*****error")
return
}
if let dataString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue) {
print("****Data: \(dataString)") //JSONSerialization
}
}
task.resume()
}
Swift 3.0
let request = NSMutableURLRequest(url: NSURL(string: "http://httpstat.us/200")! as URL)
let session = URLSession.shared
request.httpMethod = "GET"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = session.dataTask(with: request as URLRequest, completionHandler: {data, response, error -> Void in
if error != nil {
print("Error: \(String(describing: error))")
} else {
print("Response: \(String(describing: response))")
}
})
task.resume()
Swift 4
Create an app using Alamofire with Api Post method
Install pod file -pod 'Alamofire', '~> 4.0' for Swift 3 with Xcode 9
Create Webservices.swift class, import Alamofire
Design storyBoard ,Login View
insert following Code for the ViewControllerClass
import UIKit
class ViewController: UIViewController {
#IBOutlet var usernameTextField: UITextField!
#IBOutlet var passwordTextField: UITextField!
var usertypeStr :String = "-----------"
var loginDictionary : NSDictionary?
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 loginButtonClicked(_ sender: Any) {
WebServices.userLogin(userName: usernameTextField.text!, password: passwordTextField.text!,userType: usertypeStr) {(result, message, status )in
if status {
let loginDetails = result as? WebServices
self.loginDictionary = loginDetails?.loginData
if self.loginDictionary?["status"] as? String == "error"
{
self.alertMessage(alerttitle: "Login Error", (self.loginDictionary?["message"] as? String)!)
} else if self.loginDictionary?["status"] as? String == "ok" {
self.alertMessage(alerttitle: "", "Success")
}else {
self.alertMessage(alerttitle: "", (self.loginDictionary?["message"] as? String)!)
}
} else {
self.alertMessage(alerttitle: "", "Sorry")
}
}
}
func alertMessage(alerttitle:String,_ message : String){
let alertViewController = UIAlertController(title:alerttitle, message:message, preferredStyle: .alert)
alertViewController.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
present(alertViewController, animated: true, completion: nil)
}
}
Insert Following Code For WebserviceClass
import Foundation
import Alamofire
class WebServices: NSObject {
enum WebServiceNames: String {
case baseUrl = "https://---------------"
case UserLogin = "------------"
}
// MARK: - Login Variables
var loginData : NSDictionary?
class func userLogin(userName: String,password : String,userType : String, completion : #escaping (_ response : AnyObject?, _ message: String?, _ success : Bool)-> ()) {
let url = WebServiceNames.baseUrl.rawValue + WebServiceNames.UserLogin.rawValue
let params = ["USER": userName,"PASS":password,"API_Key" : userType]
WebServices.postWebService(urlString: url, params: params as [String : AnyObject]) { (response, message, status) in
print(response ?? "Error")
let result = WebServices()
if let data = response as? NSDictionary {
print(data)
result.loginData = data
completion(result, "Success", true)
}else {
completion("" as AnyObject?, "Failed", false)
}
}
}
//MARK :- Post
class func postWebService(urlString: String, params: [String : AnyObject], completion : #escaping (_ response : AnyObject?, _ message: String?, _ success : Bool)-> Void) {
alamofireFunction(urlString: urlString, method: .post, paramters: params) { (response, message, success) in
if response != nil {
completion(response as AnyObject?, "", true)
}else{
completion(nil, "", false)
}
}
}
class func alamofireFunction(urlString : String, method : Alamofire.HTTPMethod, paramters : [String : AnyObject], completion : #escaping (_ response : AnyObject?, _ message: String?, _ success : Bool)-> Void){
if method == Alamofire.HTTPMethod.post {
Alamofire.request(urlString, method: .post, parameters: paramters, encoding: URLEncoding.default, headers: nil).responseJSON { (response:DataResponse<Any>) in
print(urlString)
if response.result.isSuccess{
completion(response.result.value as AnyObject?, "", true)
}else{
completion(nil, "", false)
}
}
}else {
Alamofire.request(urlString).responseJSON { (response) in
if response.result.isSuccess{
completion(response.result.value as AnyObject?, "", true)
}else{
completion(nil, "", false)
}
}
}
}
//Mark:-Cancel
class func cancelAllRequests()
{
Alamofire.SessionManager.default.session.getTasksWithCompletionHandler { dataTasks, uploadTasks, downloadTasks in
dataTasks.forEach { $0.cancel() }
uploadTasks.forEach { $0.cancel() }
downloadTasks.forEach { $0.cancel() }
}
}
}
swift 4
USE ALAMOFIRE in our App plz install pod file
pod 'Alamofire', '~> 4.0'
We can Use API for Json Data -https://swapi.co/api/people/
Then We can create A networking class for Our project- networkingService.swift
import Foundation
import Alamofire
typealias JSON = [String:Any]
class networkingService{
static let shared = networkingService()
private init() {}
func getPeople(success successblock: #escaping (GetPeopleResponse) -> Void)
{
Alamofire.request("https://swapi.co/api/people/").responseJSON { response in
guard let json = response.result.value as? JSON else {return}
// print(json)
do {
let getPeopleResponse = try GetPeopleResponse(json: json)
successblock(getPeopleResponse)
}catch{}
}
}
func getHomeWorld(homeWorldLink:String,completion: #escaping(String) ->Void){
Alamofire.request(homeWorldLink).responseJSON {(response) in
guard let json = response.result.value as? JSON,
let name = json["name"] as? String
else{return}
completion(name)
}
}
}
Then Create NetworkingError.swift class
import Foundation
enum networkingError : Error{
case badNetworkigStuff
}
Then create Person.swift class
import Foundation
struct Person {
private let homeWorldLink : String
let birthyear : String
let gender : String
let haircolor : String
let eyecolor : String
let height : String
let mass : String
let name : String
let skincolor : String
init?(json : JSON) {
guard let birthyear = json["birth_year"] as? String,
let eyecolor = json["eye_color"] as? String,
let gender = json["gender"] as? String,
let haircolor = json["hair_color"] as? String,
let height = json["height"] as? String,
let homeWorldLink = json["homeworld"] as? String,
let mass = json["mass"] as? String,
let name = json["name"] as? String,
let skincolor = json["skin_color"] as? String
else { return nil }
self.homeWorldLink = homeWorldLink
self.birthyear = birthyear
self.gender = gender
self.haircolor = haircolor
self.eyecolor = eyecolor
self.height = height
self.mass = mass
self.name = name
self.skincolor = skincolor
}
func homeWorld(_ completion: #escaping (String) -> Void) {
networkingService.shared.getHomeWorld(homeWorldLink: homeWorldLink){ (homeWorld) in
completion(homeWorld)
}
}
}
Then create DetailVC.swift
import UIKit
class DetailVC: UIViewController {
var person :Person!
#IBOutlet var name: UILabel!
#IBOutlet var birthyear: UILabel!
#IBOutlet var homeworld: UILabel!
#IBOutlet var eyeColor: UILabel!
#IBOutlet var skinColor: UILabel!
#IBOutlet var gender: UILabel!
#IBOutlet var hairColor: UILabel!
#IBOutlet var mass: UILabel!
#IBOutlet var height: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
print(person)
name.text = person.name
birthyear.text = person.birthyear
eyeColor.text = person.eyecolor
gender.text = person.gender
hairColor.text = person.haircolor
mass.text = person.mass
height.text = person.height
skinColor.text = person.skincolor
person.homeWorld{(homeWorld) in
self.homeworld.text = homeWorld
}
}
}
Then Create GetPeopleResponse.swift class
import Foundation
struct GetPeopleResponse {
let people : [Person]
init(json :JSON) throws {
guard let results = json["results"] as? [JSON] else { throw networkingError.badNetworkigStuff}
let people = results.map{Person(json: $0)}.flatMap{ $0 }
self.people = people
}
}
Then Our View controller class
import UIKit
class ViewController: UIViewController {
#IBOutlet var tableVieww: UITableView!
var people = [Person]()
#IBAction func getAction(_ sender: Any)
{
print("GET")
networkingService.shared.getPeople{ response in
self.people = response.people
self.tableVieww.reloadData()
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?)
{
guard segue.identifier == "peopleToDetails",
let detailVC = segue.destination as? DetailVC,
let person = sender as AnyObject as? Person
else {return}
detailVC.person = person
}
}
extension ViewController:UITableViewDataSource{
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return people.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
cell.textLabel?.text = people[indexPath.row].name
return cell
}
}
extension ViewController:UITableViewDelegate{
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "peopleToDetails", sender: people[indexPath.row])
}
}
In our StoryBoard
plz Connect with our View with another one using segue with identifier -peopleToDetails
Use UITableView In our First View
Use UIButton For get the Data
Use 9 Labels in our DetailVc
Very simple 100% working , tested
var url : String = "https://restcountries.eu/rest/v2/all"
URLSession.shared.dataTask(with: NSURL(string: url) as! URL) { data, response, error in
// Handle result
let response = String (data: data!, encoding: String.Encoding.utf8)
print("response is \(response)")
do {
let getResponse = try JSONSerialization.jsonObject(with: data!, options: .allowFragments)
print(getResponse)
let countryArray = getResponse as! NSArray
print(countryArray)
let country1 = countryArray[0] as! [String:Any]
let name = country1["name"] as! String
print(name)
} catch {
print("error serializing JSON: \(error)")
}
}.resume()
}
If you're working in Swift 3, the syntax changes. The example here worked for me and has a good explanation of the steps: https://grokswift.com/simple-rest-with-swift/
This is the code from that tutorial:
let todoEndpoint: String = "https://jsonplaceholder.typicode.com/todos/1"
guard let url = URL(string: todoEndpoint) else {
print("Error: cannot create URL")
return
}
let urlRequest = URLRequest(url: url)
let task = session.dataTask(with: urlRequest) {
(data, response, error) in
// check for any errors
guard error == nil else {
print("error calling GET on /todos/1")
print(error!)
return
}
// make sure we got data
guard let responseData = data else {
print("Error: did not receive data")
return
}
// parse the result as JSON, since that's what the API provides
do {
guard let todo = try JSONSerialization.jsonObject(with: responseData, options: [])
as? [String: Any] else {
print("error trying to convert data to JSON")
return
}
// now we have the todo
// let's just print it to prove we can access it
print("The todo is: " + todo.description)
// the todo object is a dictionary
// so we just access the title using the "title" key
// so check for a title and print it if we have one
guard let todoTitle = todo["title"] as? String else {
print("Could not get todo title from JSON")
return
}
print("The title is: " + todoTitle)
} catch {
print("error trying to convert data to JSON")
return
}
}
task.resume()
Swift 5
API call method
//Send Request with ResultType<Success, Error>
func fetch(requestURL:URL,requestType:String,parameter:[String:AnyObject]?,completion:#escaping (Result<Any>) -> () ){
//Check internet connection as per your convenience
//Check URL whitespace validation as per your convenience
//Show Hud
var urlRequest = URLRequest.init(url: requestURL)
urlRequest.cachePolicy = .reloadIgnoringLocalCacheData
urlRequest.timeoutInterval = 60
urlRequest.httpMethod = String(describing: requestType)
urlRequest.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
urlRequest.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Accept")
//Post URL parameters set as URL body
if let params = parameter{
do{
let parameterData = try JSONSerialization.data(withJSONObject:params, options:.prettyPrinted)
urlRequest.httpBody = parameterData
}catch{
//Hide hude and return error
completion(.failure(error))
}
}
//URL Task to get data
URLSession.shared.dataTask(with: requestURL) { (data, response, error) in
//Hide Hud
//fail completion for Error
if let objError = error{
completion(.failure(objError))
}
//Validate for blank data and URL response status code
if let objData = data,let objURLResponse = response as? HTTPURLResponse{
//We have data validate for JSON and convert in JSON
do{
let objResposeJSON = try JSONSerialization.jsonObject(with: objData, options: .mutableContainers)
//Check for valid status code 200 else fail with error
if objURLResponse.statusCode == 200{
completion(.success(objResposeJSON))
}
}catch{
completion(.failure(error))
}
}
}.resume()
}
Use of API call method
func useOfAPIRequest(){
if let baseGETURL = URL(string:"https://postman-echo.com/get?foo1=bar1&foo2=bar2"){
self.fetch(requestURL: baseGETURL, requestType: "GET", parameter: nil) { (result) in
switch result{
case .success(let response) :
print("Hello World \(response)")
case .failure(let error) :
print("Hello World \(error)")
}
}
}
}
Api Call using Model Class
let urlString = "http://--.154.--.78/------/index.php?route=api/coupon/all"
let url = URL(string: urlString)
var request = URLRequest(url: url!)
request.httpMethod = "GET"
URLSession.shared.dataTask(with:request) { (data, response, error) in
if error != nil {
print(error)
} else {
do {
let parsedDictionaryArray = try JSONSerialization.jsonObject(with: data!) as! [String:AnyObject]
print(parsedDictionaryArray)
if let arry = parsedDictionaryArray["data"] as? [[String:AnyObject]] {
for dic in arry {
let name = dic["name"]
let descriptionData = dic["description"]
self.modelReference.append(model(name: name as! String, descriptionStr: descriptionData as! String))
print(name!)
}
}
} catch let error as NSError {
print(error)
}
}
}.resume()
create a variable and connect with model class
var modelReference = [model]()
create a model class New -> swift class
import Foundation
class model : NSObject{
var name : String
var descriptionStr: String
init(name : String, descriptionStr: String)
{
self.name = name
self.descriptionStr = descriptionStr
}
}
then we can connect with our table view objects
let cell = tableView.dequeueReusableCell(withIdentifier: "TableViewCellID")as! TableViewCell
cell.listName.text = modelReference[indexPath.row].name
let headers = [
"cache-control": "no-cache",
"postman-token": "6f8a-12c6-87a1-ac0f25d6385a"
]
let request = NSMutableURLRequest(url: NSURL(string: "Your url string")! as URL,
cachePolicy: .useProtocolCachePolicy,
timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers
let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
if error == nil && data != nil {
do {
// Convert NSData to Dictionary where keys are of type String, and values are of any type
let json = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String:AnyObject]
print(json)
//do your stuff
// completionHandler(true)
} catch {
// completionHandler(false)
}
}
else if error != nil
{
//completionHandler(false)
}
}).resume()
}
func getAPICalling(mainUrl:String) {
//create URL
guard let url = URL(string: mainUrl) else {
print("Error: cannot create URL")
return
}
//create request
let urlRequest = URLRequest(url: url)
// create the session
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)
// make the request
let task = session.dataTask(with: urlRequest) {
(data, response, error) in
// check for any errors
guard error == nil else {
print("error calling GET")
print(error!.localizedDescription)
return
}
// make sure we got data
guard let responseData = data else {
print("error: did not receive data")
return
}
// convert Data in JSON && parse the result as JSON, since that's what the API provides
do {
guard let object = try JSONSerialization.jsonObject(with: responseData, options: [])
as? [String: Any] else {
print("error trying to convert data to JSON")
return
}
//JSON Response
guard let todoTitle = object["response"] as? NSDictionary else {
print("Could not get todo title from JSON")
return
}
//Get array in response
let responseList = todoTitle.value(forKey: "radioList") as! NSArray
for item in responseList {
let dic = item as! NSDictionary
let str = dic.value(forKey: "radio_des") as! String
self.arrName.append(str)
print(item)
}
DispatchQueue.main.async {
self.tblView.reloadData()
}
} catch {
print("error trying to convert data to JSON")
return
}
}
task.resume()
}
Usage:
getAPICalling(mainUrl:"https://dousic.com/api/radiolist?user_id=16")
class ApiManager: NSObject {
static func callGetDataApi(url: String,completion: #escaping([[String: Any]])-> Void) {
guard let url = URL(string: ApiName.baseUrl+url ) else { return }
var request = URLRequest(url: url)
request.httpMethod = "GET"
URLSession.shared.dataTask(with:request) { (data, response, error) in
if error != nil {
print(error ?? "")
} else {
do {
let arry = try JSONSerialization.jsonObject(with: data!) as! [[String:AnyObject]]
print(arry)
DispatchQueue.main.async {
completion(arry)
}
} catch let error as NSError {
print(error)
}
}
}.resume()
}
}

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