HTTP Basic Authentication using URLSession and URLCredentialStorage in swift 4 with xcode 9

basic-auth.swift

import Foundation
import PlaygroundSupport

PlaygroundPage.current.needsIndefiniteExecution = true

let credential = URLCredential(user: “username@gmail.com”, password: “password”, persistence: URLCredential.Persistence.forSession)
let protectionSpace = URLProtectionSpace(host: "example.com", port: 443, protocol: "https", realm: "Restricted", authenticationMethod: NSURLAuthenticationMethodHTTPBasic)
URLCredentialStorage.shared.setDefaultCredential(credential, for: protectionSpace)

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

let url = URL(string: "https://example.com/api/v1/records.json")!

let task = session.dataTask(with: url) { (data, response, error) in
    guard error == nil else {
        print(error?.localizedDescription ?? "")
        return
    }

    print(String(data: data!, encoding: .utf8))
}

task.resume()

plz anyone answer urgent