I need set NSURLSessionConfiguration into IosClientEngineConfig, how to do it ?

# ktor

[Hien Nguyen]

I need set NSURLSessionConfiguration into IosClientEngineConfig, how to do it ?

[Trương Anh Ngoc]

I’m having the same issue, need to set NSURLSessionConfiguration into IosClientEngineConfig but don’t know how to set.
I’m using ktor-client-iOS 1.6.7

[Aleksei Tirman [JB]]

You can use the configureSession method to mutate an NSURLSessionConfiguration :

val client = HttpClient(Darwin) { // `Ios` for Ktor 1.6.7
    engine {
        configureSession { // this: NSURLSessionConfiguration
            // mutate configuration here
        }
    }
}

[Trương Anh Ngoc]

Hi @Aleksei Tirman [JB]
Thanks for your suggestion.
Currently in my situation, I want to inject a NSURLSessionConfiguration from native into HttpClient(Darwin)
Ex:
• On Swift code, I have a URLSessionConfiguration.default & want to pass it to KMM
• On KMM code, how can we config for this case with HttpClient(Darwin)

[Trương Anh Ngoc]

val client =  HttpClient(Darwin) {
        config(this)
        engine {
            configureSession {  
                // How can I inject NSURLSessionConfiguration from native here
            }
        }
    }

[Aleksei Tirman [JB]]

You can find an information about using Swift library from Kotlin code here. Unfortunately, there is no way to pass a configuration object and you can only mutate the one that is created by Ktor.

[Aleksei Tirman [JB]]

In Ktor 2.1.0 (will be released soon) you can use preconfigured session object like so:

val config = NSURLSessionConfiguration.defaultSessionConfiguration()
val session = NSURLSession.sessionWithConfiguration(config)

val client = HttpClient(Darwin) {
    engine {
        usePreconfiguredSession(session)
    }
}

[Trương Anh Ngoc]

It’s really helpful information.
Thanks for your quickly response.
I will wait for 2.1.0 version to update it.

[Trương Anh Ngoc]

CC @phong le