Swift Cookie Collector

getCookies.swift

    func getCookies(response: HTTPURLResponse)-> [HTTPCookie] {
        var cookies = [HTTPCookie()]
        let field = response.allHeaderFields as? [String: String]
        
        if let url = response.url {
            cookies = HTTPCookie.cookies(withResponseHeaderFields: field!, for: url)
            HTTPCookieStorage.shared.setCookies(cookies, for: url, mainDocumentURL: nil)
            
            for cookie in cookies {
                var cookieProperties = [HTTPCookiePropertyKey: Any]()
                cookieProperties[HTTPCookiePropertyKey.name] = cookie.name
                cookieProperties[HTTPCookiePropertyKey.value] = cookie.value
                cookieProperties[HTTPCookiePropertyKey.domain] = cookie.domain
                cookieProperties[HTTPCookiePropertyKey.path] = cookie.path
                cookieProperties[HTTPCookiePropertyKey.version] = NSNumber(value: cookie.version)
                cookieProperties[HTTPCookiePropertyKey.expires] = NSDate().addingTimeInterval(31536000)
                
                let newCookie = HTTPCookie(properties: cookieProperties)
                HTTPCookieStorage.shared.setCookie(newCookie!)
            }
            
        }
        return cookies
    }

Function for simply collecting cookies from an HTTPRequest. Usage:

var request = URLRequest(url: NSURL(string: "https://example.com") as! URL)
request.httpMethod = "GET"

let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)

let task = session.dataTask(with: request) { (data, response, error) in
    if let httpResponse = response as? HTTPURLResponse{
        let cookies = self.getCookies(response: httpResponse)
        print(cookies)
    }
 }