```actual class Test actual constructor() { actual val httpClientEngine: HttpClientEngineFactory...

# ktor

[Hien Nguyen]

actual class Test actual constructor() {
    actual val httpClientEngine: HttpClientEngineFactory<HttpClientEngineConfig>
        get() = OkHttp
}

I’m integrating the certificate pinning to the ktor kmm
Does ktor use network_security_config file in android ?

[Aleksei Tirman [JB]]

I've answered in https://stackoverflow.com/questions/71201930/setup-ktor-in-kmm-with-androids-network-security-config-file

[Hien Nguyen]

thx sir ^^

[Hien Nguyen]

follow my understanding, the android only support network-security-config file above android 7 ?
So, if we want to support certificate pinner on the lower devices, we have to write the code like this picture ?

[Hien Nguyen]

https://stackoverflow.com/questions/71219832/certificate-pinning-in-ktor-kmm-on-android-devices-below-android-7 I posted this question in stackoverflow, please help me 😞

[Aleksei Tirman [JB]]

So, if we want to support certificate pinner on the lower devices, we have to write the code like this picture ?

Looks like this code should work.

[Aleksei Tirman [JB]]

For iOS Ktor has dedicated functionality for certificate pinning. Please see the description in KDoc.