How to unsubscribe a subscription using graphql-ws with apollo client

[edwardfeng-db]

I'm setting up the websocket client following client usage with Apollo. And I'm trying to use Apollo's subscribeToMore functionality, like the following:

useEffect(() => {
    const unsubscribe = subscribeToMore(/*...*/)
    return () => unsubscribe();
}, [])

However, calling unsubscribe doesn't seem to send the Complete message to the server. I'm wondering why is that and do I need anything else when setting up the client? And in general how can I send the Complete message to the server with apollo client + graphql-ws? Thanks!

[enisdenjo]

Hey there, the Complete message is sent when the subscription is done with. You dont explicitly send the message, you unsubscribe from a subscription.

const unsubscribe = client.subscribe(
  {
    query: 'subscription { greetings }',
  },
  {
    next: onNext,
    error: onError,
    complete: onComplete,
  },
);

// calling `unsubscribe` will send a `Complete` message for the subscription
unsubscribe();

Regarding your question about subscribeToMore - I actually have no idea about its inner workings (and I also have 0 experience with the Apollo stack), I am sorry, but I cannot be of any help there. 😬

[edwardfeng-db]

It was actually a bug on my end with the setup of apollo link. Finally found the cause! Thank you so much! @enisdenjo

[enisdenjo]

Awesome, you're very welcome!