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kotlinlang

Hi team, hope you are doing well
From the iOS native, I need to set delegate for NSURLSession. So is there any way to pass NSURLSession or NSURLSessionDelegate back to iOS? Any of your suggestions will make my day. Thanks.
cc <@U02AHTNKWBU>

You can use the `usePreconfiguredSession`  method inside the `engine` block. Here is an example:
```val client = HttpClient(Darwin) {
    val delegate = KtorNSURLSessionDelegate()
    val session = NSURLSession.sessionWithConfiguration(
        NSURLSessionConfiguration.defaultSessionConfiguration(),
        delegate,
        delegateQueue = NSOperationQueue()
    )
    engine {
        usePreconfiguredSession(session, delegate)
    }
}```

Thanks <@U017TSBJ2C9>
Currently, we used ktor version `2.1.0`, also using `handleChallenge` AND `configureSession`   in HttpClient(Darwin).
Following by new version ktor
<https://api.ktor.io/ktor-client/ktor-client-darwin/io.ktor.client.engine.darwin/-darwin-client-engine-config/use-preconfigured-session.html>
```"Set a session to be used to make HTTP requests. If the preconfigured session is set, configureSession and handleChallenge blocks will be ignored."```
Do you have any suggestions?
cc <@U02AHTNKWBU> <@U01QS62M4JJ>

hi <@U017TSBJ2C9>
We used CertificatePinner.Builder(), configureSession and handleChallenge for config http. Under your suggestion, using new NSURLSession and usePreconfiguredSession will ignore our previous config NSURLSession. Do you have any ideas please feel free to share. Thanks
cc <@U02AHTNKWBU> <@U01QS62M4JJ>

The problem is that the primary constructor of the `KtorNSURLSessionDelegate` is internal so there is no way to pass the `ChallengeHandler` to it.

Would it solve your problem if the constructor were public?

yup, the sound is good, then we can set KtorNSURLSessionDelegate from the out side, or we can have a new func like configureSession, something like that
```public fun configureSessionDelegate(block: NSURLSessionDelegate.() -&gt; Unit)```
How about your ideals <@U017TSBJ2C9>?
cc <@U02AHTNKWBU> <@U01QS62M4JJ> <@U04TAHVMBRC> <@U03L0FVQCMB>

I don’t have a specific preference. Can you please <https://youtrack.jetbrains.com/newIssue?project=KTOR|file an issue> then?

Please kindly refer to this issue. Thanks, so excited to see it available on version 2.2.4
<https://youtrack.jetbrains.com/issue/KTOR-5688/KTORiOS-Support-access-NSURLSessionDelegate>

hi <@U017TSBJ2C9> any udpate from this issue? Thanks
<https://youtrack.jetbrains.com/issue/KTOR-5688/KTORiOS-Support-access-NSURLSessionDelegate>