i have a global `val client = HttpClient(OkHttp)` and apparently it opens a coroutine / thread that...

# ktor

[Nikky]

i have a global val client = HttpClient(OkHttp) and apparently it opens a coroutine / thread that is not closed when the program is done.. so it hangs
i am not entirely sure what change on my side triggered this or if i am using it incorrectly

if i do exitProcess(0) i can kill it but i'd prefer to avoid that
more in 🧵

[Nikky]

when i dumpt coroutines i see this:

Coroutine "ktor-okhttp-context#11":StandaloneCoroutine{Active}@1d296da, state: SUSPENDED
	at io.ktor.client.engine.okhttp.OkHttpEngine$1.invokeSuspend(OkHttpEngine.kt:55)
	(Coroutine creation stacktrace)
	at kotlin.coroutines.intrinsics.IntrinsicsKt__IntrinsicsJvmKt.createCoroutineUnintercepted(IntrinsicsJvm.kt:122)
	at kotlin.coroutines.ContinuationKt.startCoroutine(Continuation.kt:129)
	at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:110)
	at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
	at io.ktor.client.engine.okhttp.OkHttpEngine.<init>(OkHttpEngine.kt:53)
	at io.ktor.client.engine.okhttp.OkHttp.create(OkHttp.kt:16)
	at io.ktor.client.HttpClientKt.HttpClient(HttpClient.kt:42)

[Big Chungus]

Client is atomic. Use it and then close it

[Nikky]

thanks.. replacing all cases of client usage with a useClient { client -> ... } fixed it

[rudolf.hladik]

or call client.close()