Basic URL Auth with URLCredential

urlAuth.playground

import UIKit
import PlaygroundSupport

// Test site for Basic Authentication
// substitute values in the path to auth against
// http://httpbin.org/basic-auth/user/passwd
// so 
// http://httpbin.org/basic-auth/foo/bar
// would check for username = foo and password = bar

let url = URL(string: "http://httpbin.org/basic-auth/bob/123")!

let cred = URLCredential(user: "bob",
                         password: "123",
                         persistence: .forSession)
let protectionSpace = URLProtectionSpace(host: "httpbin.org",
                                         port: 80,
                                         protocol: "http",
                                         realm: "Fake Realm",
                                         authenticationMethod: NSURLAuthenticationMethodHTTPBasic)
URLCredentialStorage.shared.setDefaultCredential(cred, for: protectionSpace)

let task = URLSession.shared.dataTask(with: url) {(data, response, error) in
    print("finish task")
    if let error = error {
        print("Error downloading url: \(error)")
    } else {
        let str = String(data: data!, encoding: .utf8) ?? "<???>"
        print("data: >\(str)<")
        print("response: >\(String(describing:response))<")
    }
}

print("start task")
task.resume()


PlaygroundPage.current.needsIndefiniteExecution = true