I have 2 questions: 1. Whenever I make a call with...

# kotlinx-rpc

[Joost Klitsie]

I have 2 questions:
1. Whenever I make a call with RPC, I basically check whether the existings Ktor Rpc Client's web socket session is still active. If it isn't active or doesn't exist, I create a new one. This seems to be working, but is this how it is supposed to be? 🙂 (I sometimes reboot my server so I will lose connections and I'd like to reconnect)
2. Whenever I use a flow in my RPC client, when I lose connection it is kinda done. Is there a built-in way to retry the flow connection? Or should I also work around this myself?

[Alexander Sysoev]

Reconnection is not supported out of the box, so yeah, for now only some tricks work

is this how it is supposed to be?

No, but we don't have enough hands for now to fix that
It is planned though

[Joost Klitsie]

okay then I will make my flow workaround 🙂

[Joost Klitsie]

thanks for the answre!

[Alexander Sysoev]

Great!
You can also share your way here so other can look into it

[Joost Klitsie]

It may not be pretty what I will be doing 😄

[Joost Klitsie]

One more question:
If I call myRpcService.getFlow() (and I do not start collecting it), should I expect it to throw errors? Or only while I am collecting it?

[Alexander Sysoev]

no, the rpc call is cold, executed on the first collect

[Joost Klitsie]

cool, that allows me for some cleanup

[andylamax]

I am literally doing the same thing

[Joost Klitsie]

Is there still a pinginterval parameter somewhere?

[Joost Klitsie]

I would like my flow to die after losing connection 😄

[Joost Klitsie]

I could see a pingInterval somewhere mentioned in the history of this chat, but it does look like it may not exist 😄 Is there a way to check if the connection for a flow is still alive by pinging it?

[Alexander Sysoev]

I would like my flow to die after losing connection

It should, it probably doesn't due to https://github.com/Kotlin/kotlinx-rpc/pull/505
Will be there in 0.10.1

[Alexander Sysoev]

Is there still a pinginterval parameter somewhere?

No, only if WS session has one

[Alexander Sysoev]

but it does look like it may not exist

People write it themselves

[Alexander Sysoev]

Is there a way to check if the connection for a flow is still alive by pinging it?

WS alive -> flow is alive, except for the bug I mentioned above

[Joost Klitsie]

okay cool 🙂 What happens if connection is lost if the bug is fixed?

[Joost Klitsie]

IOException thrown or something? 🙂

[Alexander Sysoev]

flow will throw cancellation

[Alexander Sysoev]

on the collection point

[Joost Klitsie]

okay thanks 🙂