Advanced Networking with URLSession

Sep 15 2022 · Swift 5.6, iOS 15, Xcode 13.4.1

Part 2: Authentication, Cookies & App Transport Security

12. Challenge: Print Cookies from a Request

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Previous episode: 11. Work With Cookies Next episode: 13. Conclusion

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Working with cookies is pretty important, so it’s time to give you a good old fashioned cookie challenge.

guard let url = URL(string: "”) else {
do {
  let (_, response) = try await url)
} catch {
guard let httpResponse = response as? HTTPURLResponse,
      let fields = httpResponse.allHeaderFields as? [String: String]
else {
let cookies = HTTPCookie.cookies(withResponseHeaderFields: fields, for: url)
setDescription(for: cookies)
func setDescription(for cookies: [HTTPCookie]? = nil) {
  Task { @MainActor in
    guard let cookies = cookies, !cookies.isEmpty else {
      description = "Cookies: N/A"
    var descriptionString = ""
    for cookie in cookies {
      descriptionString += "\( \(cookie.value)\n"
    description = descriptionString