To get a direct link to YouTube video I made request to get the get_video_info file, in this file that link, but I have to parse it, I find the solution to parse it by PHP but I want to parse it directly from my App
I get the data from my code like this:
let youtubeContentID = "sZz7tiToK1U"
if let infoURL = URL(string:"https://www.youtube.com/get_video_info?video_id=\(youtubeContentID)") {
let request = URLRequest(url: infoURL)
let session = URLSession(configuration: .default)
let task = session.dataTask(with: request, completionHandler: { (data, response, error) -> Void in
if let error = error {
print(error)
} else if let data = data, let result = NSString(data: data, encoding: String.Encoding.utf8.rawValue) {
print(result)
}
})
task.resume()
}
}
I got data with many Ascii symbols like this:
c=WEB&vss_host=s.youtube.com&innertube_api_version=v1&xhr_apiary_host=youtubei.youtube.com&apiary_host_firstparty=&status=ok&t=1&enabled_engage_types=3%2C6%2C4%2C5%2C17%2C1&ssl=1&adaptive_fmts=type%3Dvideo%252Fwebm%253B%2Bcodecs%253D%2522vp9%2522%26eotf%3Dbt709%26projection_type%3D1%26lmt%3D1550114115045036%26bitrate%3D16962786%26size%3D3840x2160%26index%3D221-1771%26quality_label%3D2160p%26xtags%3D%26url%3Dhttps%253A%252F%252Fr2---sn-nuj-wxqek.googlevideo.com%252Fvideoplayback%253Fexpire%253D1551500605%2526usequic%253Dno%2526gir%253Dyes%2526mime%253Dvideo%25252Fwebm%2526requiressl%253Dyes%2526keepalive%253Dyes%2526fvip%253D2%2526clen%253D547103152%2526source%253Dyoutube%2526aitags%253D133%25252C134%25252C135%25252C136%25252C137%25252C160%25252C242%25252C243%25252C244%25252C247%25252C248%25252C271%25252C278%25252C313%25252C394%25252C395%25252C396%25252C397%2526signature%253D9C28A5C103FA95701CD3655795DDB7F2C0954828.55534AC9C7BEE5D644C3A34C2CD4A4EEC9E2FD38%2526lmt%253D1550114115045036%2526ip%253D129.208.30.232%2526key%253Dyt6%2526c%253DWEB%2526ei%253D3bB5XKeFFNWd1wbBpqjgAg%2526txp%253D5531432%2526id%253Do-AIOVogCB8KFe32o_VgxSx-LqaEjNBZxiZ1jl81VTXZhF%2526sparams%253Daitags%25252Cclen%25252Cdur%25252Cei%25252Cgir%25252Cid%25252Cinitcwndbps%25252Cip%25252Cipbits%25252Citag%25252Ckeepalive%25252Clmt%25252Cmime%25252Cmm%25252Cmn%25252Cms%25252Cmv%25252Cpl%25252Crequiressl%25252Csource%25252Cusequic%25252Cexpire%2526initcwndbps%253D296250%2526itag%253D313%2526ms%253Dau%25252Crdu%2526mt%253D1551478917%2526mv%253Dm%2526dur%253D428.933%2526pl%253D19%2526ipbits%253D0%2526mm%253D31%25252C29%2526mn%253Dsn-nuj-wxqek%25252Csn-hgn7yn7l%26clen%3D547103152%26init%3D0-220%26itag%3D313%26primaries%3Dbt709%26fps%3D30%2Ctype%3Dvideo%252Fwebm%253B%2Bcodecs%253D%2522vp9%2522%26eotf%3Dbt709%26projection_type%3D1%26lmt%3D1550113771564979%26bitrate%3D6318874%26size%3D2560x1440%26index%3D220-1763%26quality_label%3D1440p%26xtags%3D%26url%3Dhttps%253A%252F%252Fr2---sn-nuj-wxqek.googlevideo.com%252Fvideoplayback%253Fexpire%253D1551500605%2526usequic%253Dno%2526gir%253Dyes%2526mime%253Dvideo%25252Fwebm%2526requiressl%253Dyes%2526keepalive%253Dyes%2526fvip%253D2%2526clen%253D155020170%2526source%253Dyoutube%2526aitags%253D133%25252C134%25252C135%25252C136%25252C137%25252C160%25252C242%25252C243%25252C244%25252C247%25252C248%25252C271%25252C278%25252C313%25252C394%25252C395%25252C396%25252C397%2526signature%253D4D7BF761EE4A6DFD048DE3D48550FCE80E61B7D0.D625BCC9645471ABA478F79C197B2208F354E15F%2526lmt%253D1550113771564979%2526ip%253D129.208.30.232%2526key%253Dyt6%2526c%253DWEB%2526ei%253D3bB5XKeFFNWd1wbBpqjgAg%2526txp%253D5531432%2526id%253Do-AIOVogCB8KFe32o_VgxSx- .... ext
I find code can deal with this YouTube request, it created on 2015 so it can't run on the new Swift, so I edited it to work on Swift 4, just copy this code in side a new Swift file then call function h264videosWithYoutubeID(youtubeID: your TouTube ID) and you will get the correct url:
import UIKit
public extension NSURL {
func dictionaryForQueryString() -> [String: AnyObject]? {
if let query = self.query {
return query.dictionaryFromQueryStringComponents()
}
let result = absoluteString?.components(separatedBy: "?")
if result!.count > 1 {
return result!.last?.dictionaryFromQueryStringComponents()
}
return nil
}
}
public extension NSString {
func stringByDecodingURLFormat() -> String {
let result = self.replacingOccurrences(of: "+", with: " ")
return result.removingPercentEncoding!
}
func dictionaryFromQueryStringComponents() -> [String: AnyObject] {
var parameters = [String: AnyObject]()
for keyValue in components(separatedBy: "&") {
let keyValueArray = keyValue.components(separatedBy: "=")
if keyValueArray.count < 2 {
continue
}
let key = keyValueArray[0].stringByDecodingURLFormat()
let value = keyValueArray[1].stringByDecodingURLFormat()
parameters[key] = value as AnyObject
}
return parameters
}
}
public class YoutubeUrlReciver: NSObject {
static let infoURL = "http://www.youtube.com/get_video_info?video_id="
static var userAgent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4"
public static func youtubeIDFromYoutubeURL(youtubeURL: NSURL) -> String? {
if let
youtubeHost = youtubeURL.host,
let youtubePathComponents = youtubeURL.pathComponents {
let youtubeAbsoluteString = youtubeURL.absoluteString
if youtubeHost == "youtu.be" as String? {
return youtubePathComponents[1]
} else if youtubeAbsoluteString?.range(of: "www.youtube.com/embed") != nil {
return youtubePathComponents[2]
} else if youtubeHost == "youtube.googleapis.com" ||
youtubeURL.pathComponents!.first == "www.youtube.com" as String? {
return youtubePathComponents[2]
} else if let
queryString = youtubeURL.dictionaryForQueryString(),
let searchParam = queryString["v"] as? String {
return searchParam
}
}
return nil
}
public static func h264videosWithYoutubeID(youtubeID: String) -> [String: AnyObject]? {
let urlString = String(format: "%#%#", infoURL, youtubeID) as String
let url = NSURL(string: urlString)!
let request = NSMutableURLRequest(url: url as URL)
request.timeoutInterval = 5.0
request.setValue(userAgent, forHTTPHeaderField: "User-Agent")
request.httpMethod = "GET"
var responseString = NSString()
let session = URLSession(configuration: URLSessionConfiguration.default)
let group = DispatchGroup()
group.enter()
session.dataTask(with: request as URLRequest, completionHandler: { (data, response, _) -> Void in
if let data = data as NSData? {
responseString = NSString(data: data as Data, encoding: String.Encoding.utf8.rawValue)!
}
group.leave()
}).resume()
group.wait()
let parts = responseString.dictionaryFromQueryStringComponents()
if parts.count > 0 {
var videoTitle: String = ""
var streamImage: String = ""
if let title = parts["title"] as? String {
videoTitle = title
}
if let image = parts["iurl"] as? String {
streamImage = image
}
if let fmtStreamMap = parts["url_encoded_fmt_stream_map"] as? String {
// Live Stream
if let _: AnyObject = parts["live_playback"]{
if let hlsvp = parts["hlsvp"] as? String {
return [
"url": "\(hlsvp)" as AnyObject,
"title": "\(videoTitle)" as AnyObject,
"image": "\(streamImage)" as AnyObject,
"isStream": true as AnyObject
]
}
} else {
let fmtStreamMapArray = fmtStreamMap.components(separatedBy: ",")
for videoEncodedString in fmtStreamMapArray {
var videoComponents = videoEncodedString.dictionaryFromQueryStringComponents()
videoComponents["title"] = videoTitle as AnyObject
videoComponents["isStream"] = false as AnyObject
return videoComponents as [String: AnyObject]
}
}
}
}
return nil
}
public static func h264videosWithYoutubeURL(youtubeURL: NSURL,completion: ((
_ videoInfo: [String: AnyObject]?, _ error: NSError?) -> Void)?) {
DispatchQueue.global().async {
if let youtubeID = self.youtubeIDFromYoutubeURL(youtubeURL: youtubeURL), let videoInformation = self.h264videosWithYoutubeID(youtubeID: youtubeID) {
DispatchQueue.main.async {
completion?(videoInformation, nil)
}
}else{
DispatchQueue.main.async {
completion?(nil, NSError(domain: "com.player.youtube.backgroundqueue", code: 1001, userInfo: ["error": "Invalid YouTube URL"]))
}
}
}
}
}
Related
I'm trying to get JSON but it shows an occurred issue
Line starting with if let deliveryObject
How to get rid of the problem?
code:
struct Tracking {
let receiver: String
let placeOfMail: String
let indexOfMail: Double
init(json:[String:Any]) throws {
guard let receiver = json["name"] as? String else {
throw SerializationError.missing("Receiver data has been missed")
}
guard let placeOfMail = json ["address"] as? String else {
throw SerializationError.missing("Place of delivery has been missed")
}
guard let indexOfMail = json ["postindex"] as? Double else {
throw SerializationError.missing("Index of postmail has been missed")
}
self.receiver = receiver
self.placeOfMail = placeOfMail
self.indexOfMail = indexOfMail
}
static let basePath = "https://track.kazpost.kz/api/v2/"
static func deliveryData (withTrackid trackid:String, completion: #escaping ([Tracking]) -> ()){
let url = basePath + trackid
let request = URLRequest(url: URL(string: url)!)
let task = URLSession.shared.dataTask(with: request) { (data: Data?, response : URLResponse?, error: Error?) in
var deliveryArray: [Tracking] = []
if let data = data {
do {
if let json = try JSONSerialization.jsonObject(with: data, options:[]) as? [String:Any] {
if let deliveryInformation = json ["delivery"] as? [String:Any] {
if let deliveryPlace = deliveryInformation ["address"] as? [String:Any] {
for dataPoint in deliveryPlace {
if let dataPointValue = dataPoint.value as? [String: AnyObject],
let deliveryObject = try Tracking(json: dataPointValue) {
deliveryArray.append(deliveryObject)
}
}
}
}
}
}catch {
print(error.localizedDescription)
}
completion(deliveryArray)
}
}
task.resume()
}
}
hello i am working with swift 6.2 ( the performance of my pc doesn't support ++)
i have copied from open classroom this program in my file but there are many errors
i just want to know if it is just problem of swift compatibility or there are really errors in the code
//****************
import UIKit
class QuestionManager {
private let url = URL(string: "https://opentdb.com/api.php?amount=10&type=boolean")!
// exemple of message error: use of unresolved identifier 'URL'
static let shared = QuestionManager()
private init() {}
// FIX IT : replace static with class ...
// AND LOT OF MESSAGE ERROR LIKE THIS...
func get(completionHandler: #escaping ([Question]) -> ()) {
let task = URLSession.shared.dataTask(with: self.url) { (data, response, error) in
guard error == nil else {
completionHandler([Question]())
return
}
DispatchQueue.main.async {
completionHandler(self.parse(data: data))
}
}
task.resume()
}
private func parse(data: Data?) -> [Question] {
guard let data = data,
let serializedJson = try? JSONSerialization.jsonObject(with: data, options: []),
let parsedJson = serializedJson as? [String: Any],
let results = parsedJson["results"] as? [[String: Any]] else {
return [Question]()
}
return getQuestionsFrom(parsedDatas: results)
}
private func getQuestionsFrom(parsedDatas: [[String: Any]]) -> [Question]{
var retrievedQuestions = [Question]()
for parsedData in parsedDatas {
retrievedQuestions.append(getQuestionFrom(parsedData: parsedData))
}
return retrievedQuestions
}
private func getQuestionFrom(parsedData: [String: Any]) -> Question {
if let title = parsedData["question"] as? String,
let answer = parsedData["correct_answer"] as? String {
return Question(title: String(htmlEncodedString: title)!, isCorrect: (answer == "True"))
}
return Question()
}
}
extension String {
init?(htmlEncodedString: String) {
guard let data = htmlEncodedString.data(using: .utf8) else {
return nil
}
let options: [NSAttributedString.DocumentReadingOptionKey: Any] = [
NSAttributedString.DocumentReadingOptionKey.documentType: NSAttributedString.DocumentType.html,
NSAttributedString.DocumentReadingOptionKey.characterEncoding: String.Encoding.utf8.rawValue
]
guard let attributedString = try? NSAttributedString(data: data, options: options, documentAttributes: nil) else {
return nil
}
self.init(attributedString.string)
}
}
I got a source code from a github page written in swift and implementing GoogleMaps. I now want to refactor the codes to use Alamofire and SwiftyJSON so that I can improve the code but I got confused because through my learning of swift I used Alamofire and swiftyJSON for every networking process so I am confused currently. the code below
typealias PlacesCompletion = ([GooglePlace]) -> Void
typealias PhotoCompletion = (UIImage?) -> Void
class GoogleDataProvider {
private var photoCache: [String: UIImage] = [:]
private var placesTask: URLSessionDataTask?
private var session: URLSession {
return URLSession.shared
}
let appDelegate = UIApplication.shared.delegate as! AppDelegate
func fetchPlacesNearCoordinate(_ coordinate: CLLocationCoordinate2D, radius: Double, types:[String], completion: #escaping PlacesCompletion) -> Void {
var urlString = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=\(coordinate.latitude),\(coordinate.longitude)&radius=\(radius)&rankby=prominence&sensor=true&key=\(appDelegate.APP_ID)"
let typesString = types.count > 0 ? types.joined(separator: "|") : "food"
urlString += "&types=\(typesString)"
urlString = urlString.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed) ?? urlString
guard let url = URL(string: urlString) else {
completion([])
return
}
if let task = placesTask, task.taskIdentifier > 0 && task.state == .running {
task.cancel()
}
DispatchQueue.main.async {
UIApplication.shared.isNetworkActivityIndicatorVisible = true
}
placesTask = session.dataTask(with: url) { data, response, error in
var placesArray: [GooglePlace] = []
defer {
DispatchQueue.main.async {
UIApplication.shared.isNetworkActivityIndicatorVisible = false
completion(placesArray)
}
}
guard let data = data,
let json = try? JSON(data: data, options: .mutableContainers),
let results = json["results"].arrayObject as? [[String: Any]] else {
return
}
results.forEach {
let place = GooglePlace(dictionary: $0, acceptedTypes: types)
placesArray.append(place)
if let reference = place.photoReference {
self.fetchPhotoFromReference(reference) { image in
place.photo = image
}
}
}
}
placesTask?.resume()
}
func fetchPhotoFromReference(_ reference: String, completion: #escaping PhotoCompletion) -> Void {
if let photo = photoCache[reference] {
completion(photo)
} else {
let urlString = "https://maps.googleapis.com/maps/api/place/photo?maxwidth=200&photoreference=\(reference)&key=\(appDelegate.APP_ID)"
guard let url = URL(string: urlString) else {
completion(nil)
return
}
DispatchQueue.main.async {
UIApplication.shared.isNetworkActivityIndicatorVisible = true
}
session.downloadTask(with: url) { url, response, error in
var downloadedPhoto: UIImage? = nil
defer {
DispatchQueue.main.async {
UIApplication.shared.isNetworkActivityIndicatorVisible = false
completion(downloadedPhoto)
}
}
guard let url = url else {
return
}
guard let imageData = try? Data(contentsOf: url) else {
return
}
downloadedPhoto = UIImage(data: imageData)
self.photoCache[reference] = downloadedPhoto
}
.resume()
}
}
}
any help to refactor the codes to use Alamofire and swiftyJSON would be appreciated.
Both Alamofire and SwiftyJSON have pretty decent instructions, and there are plenty of examples online to look for. However, this would be a decent starting point - you need to replace your session.dataTask and session.downloadTask with Alamofire methods. For example, instead of:
session.downloadTask(with: url) { url, response, error in
var downloadedPhoto: UIImage? = nil
defer {
DispatchQueue.main.async {
UIApplication.shared.isNetworkActivityIndicatorVisible = false
completion(downloadedPhoto)
}
}
guard let url = url else {
return
}
guard let imageData = try? Data(contentsOf: url) else {
return
}
downloadedPhoto = UIImage(data: imageData)
self.photoCache[reference] = downloadedPhoto
}
.resume()
use this skeleton and implement your models and logic:
Alamofire
.request(url)
.responseJSON { dataResponse in
switch dataResponse.result {
case .success:
guard let json = JSON(dataResponse.data) else {
return
}
// Continue parsing
case .failure(let error):
// Handle error
print("\(error)")
}
}
I currently have a class which is below:
class Anton {
//URL to web service (Internal)
let URL_DISPLAY_MENU = "http://192.168.1.100/api/DisplayMenu.php"
func displayMenu(completion: #escaping ([[String:Any]]) ->()) {
let requestURL = URL(string: URL_DISPLAY_MENU)
var request = URLRequest(url: requestURL!)
request.httpMethod = "POST"
var menu: [[String:Any]]?
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 {
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(String(describing: response))")
} else {
menu = try JSONSerialization.jsonObject(with: data, options: []) as? [[String: Any]] ?? []
var dictionary = [Int:Any]()
for (index,item) in menu!.enumerated() {
let uniqueID = index
dictionary[uniqueID] = item
}
completion(menu!)
}
} catch let error as NSError {
print(error)
}
}
task.resume()
}
}
At the moment I use the class & contained function as follows:
var anton = Anton()
anton.displayMenu { menu in
print(menu)
}
What I want to do is have a way of saving the #escaping result into a global variable. I'm very new to escaping closures so not sure how to go about this.
You can save your value directly in completion.
Example:
var anton = Anton()
anton.displayMenu { menu in
self.myMenu = menu
}
I am trying to get a list of events from the meetup's api. Its crashes when request mulitple times as it states can only request once and is limited to 200 requests. I am getting groups then using the "urlName" api call to get the event coming up for that group. The result would be an array of events from a bunch of meetup groups. Here is my code.
func getEventsFromMeetup(complete: (groups: [Meetup], succes: Bool) -> Void) {
var currentUserInterests = [String]()
let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession(configuration: config)
let recommendedBaseUrl = "https://api.meetup.com/recommended/groups?key=\(meetupAPIKey)"
let url = NSURL(string: recommendedBaseUrl)
let request = NSMutableURLRequest(URL: url!)
request.HTTPMethod = "GET"
session.dataTaskWithRequest(request) { (data, response, error) in
guard error == nil else {
print(error)
complete(groups: [Meetup](), succes: false)
return
}
guard let data = data else {
print("Error with data")
complete(groups: [Meetup](), succes: false)
return
}
do {
let json = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.AllowFragments) as! [NSDictionary]
var groups = [Meetup]()
CurrentUserFM.sharedInstance.getCurrentUserInterests { (interests) in
currentUserInterests = interests
var ints = [String]()
print(json.count)
for j in json {
let m = Meetup(data: j)
ints.append(m.name!)
if let i = m.interestName {
if currentUserInterests.contains(i) {
groups.append(m)
}
}
print("ints: \(ints.count)")
print("json: \(json.count)")
if Int(ints.count) >= Int(json.count) {
dispatch_async(dispatch_get_main_queue(), {
complete(groups: groups, succes: true)
return
})
}
}
}
}catch {
print(error)
}
}.resume()
}
func getEventsForGroups(completionHandler: (meetupEvents: [MeetupEvent]) -> ()) {
self.getEventsFromMeetup { (groups, success) in
var meetupEvents1 = [MeetupEvent]()
var ints = [String]()
for group in groups {
let eventBaseUrl = "https://api.meetup.com/\(group.urlname!)?key=\(meetupAPIKey)"
let url = NSURL(string: eventBaseUrl)
let request = NSMutableURLRequest(URL: url!)
let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession(configuration: config)
session.dataTaskWithRequest(request, completionHandler: { (data, reponse, error) in
guard error == nil else {
print(error)
return
}
guard let data = data else {
print("Error with data")
return
}
do {
let json = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.AllowFragments)
let m = MeetupEvent()
if let name = json["name"] as? String {
m.name = name
}
if let link = json["link"] as? String {
m.link = link
}
if let interestName = group.name {
m.interestName = interestName
}
if let image = json["key_photo"]??["thumb_link"] as? String {
m.image = image
}
meetupEvents1.append(m)
ints.append("1")
if Int(ints.count) >= Int(groups.count) {
dispatch_async(dispatch_get_main_queue(), {
completionHandler(meetupEvents: meetupEvents1)
return
})
}
}catch {
print(error)
}
}).resume()
}
}
}
Any suggestions on how to get the events from the groups so that the app wont crash from meetup calls?