Subscription support

[szantogab]

Is this library capable of supporting subscriptions at the moment ? And if not, is this feature on the roadamp?

[kaqqao]

Yes, subscriptions are supported already.
Your resolver method needs to return a Publisher<Something> and you'll receive a Publisher<ExecutionResult> in the end. If you're using annotations, the you're looking for is @GraphQLSubscription.

From there, see the graphql-java WebSocket example, this cool pull request using SPQR, or wait for me to finally push the GraphQL SPQR Spring Boot Starter example (which uses Reactor for this).

[kaqqao]

If you end up implementing something, please contact me. I'm very interested in how subscriptions are used, especially what clients and transports.

[szantogab]

Sound awesome, when do you plan to release the Spring Boot Starter ?

[kaqqao]

Ah, the starter is already out! 😄 https://github.com/leangen/graphql-spqr-spring-boot-starter

It's just the sample that I haven't pushed yet.
Will try to clean it up an push it tonight.

[kaqqao]

Ok, wow, I actually forgot I had already pushed the sample a while ago 😌
You can see a subscription sample using Reactor (and WebSocket) here. IssueService is the class firing events.

[kaqqao]

I'll close this one as it seems all the questions have been addressed. If not, please reopen.