Hi, how can I use GraphQL in KMM projects. Because Apollo requires iOS 13+ we’re looking for an alternative.

Do you need subscriptions ? iOS 13 is only required for WebSockets. It might work if you don't use subscriptions. Worst case, we could move websockets to a separate module

Yeah, websocket will be used heavily in the project. Is there any libraries to convert data models to GraphQL queries? If we want to use Ktor instead of Apollo

Can Ktor do WebSocket on iOS ? Reading https://ktor.io/docs/websocket-client.html#usage I'm not sure

You’re right, relating to this issue https://github.com/ktorio/ktor/issues/1894 it doesn’t support websocket on iOS. Is there any alternative way?

If you need subscriptions on iOS < 13, you'll have to write your own WebSockets code. Either using plain C sockets or maybe linking with starscream, a WebSocket library on iOS

I found this artucle to implement websocket, I think it would be helpful https://kotlinlang.org/docs/mobile/connect-to-platform-specific-apis.html#example-send-and-receive-messages-from-a-websocket

This is what Apollo Android does. It requires iOS 13

Why it's not compatible with iOS < 13? According to the apple docs NSURLSession is available on iOS 7.0+ https://developer.apple.com/documentation/foundation/nsurlsession

The WebSocket methods are iOS13+: https://developer.apple.com/documentation/foundation/nsurlsession/3181171-websockettaskwithurl

Right, thanks 🙏