I want to implement my API’s hitting mechanism to use HTTP2/3 using QUIC as their transport layer, which provides benefits for reduce latency and improved multiplexing.

I am using Cronet in android native app using java. Same i want to use in my iOS native app using Swift.

Cronet’s usage in swift app is not explained anywhere in web.

I am using this library Cronet.framework

and its implementation i found is this.

Add in Podfile and do pod install in terminal.

pod 'Cronet'

then in AppDelegate

import Cronet

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        setupCronet()
        return true
    }

    private func setupCronet() {
        Cronet.setHttp2Enabled(true)
        Cronet.setQuicEnabled(true)
        Cronet.setBrotliEnabled(true)
        Cronet.setHttpCacheType(.memory)
        Cronet.start()
        Cronet.registerHttpProtocolHandler()
    }
}

But there is no other implementation in project to call like in Android we call CronetEngine and then to call the api’s.

Question is:

• Do i need to use URLSession for network calls as usual and it will use cronet. (I don’t think so)

• The other thought is Apple’s URLSession in latest version of iOS supports Http2/3 using QUIC itself(precondition, the HTTP server supports QUIC protocol) and we do not need to use Cronet like we did in android?????