Notification/subscription support

[iketheadore]

Hey guys:

Thanks for all your awesome works, and do we have notification/subscription supported now?

[trevex]

There was a previous discussion here: #49

I am currently making myself familiar with this topic as well and from what I can see the building
blocks are all in place, but currently you have to go the extra mile yourself.

As far as I can see you have to do basically the following:

• parse your query to get the AST
• validate it with your schema and potentially other rule functions
• setup your pubsub system (possibly using the arguments/variables)
• for every message received by the pubsub system execute your query and and inject the received message as RootObject and send the result to the client

[trevex]

Similar to the extension library for the JS graphql library:
https://dev-blog.apollodata.com/a-proposal-for-graphql-subscriptions-1d89b1934c18

I implemented the same pattern for graphql-go:
https://github.com/trevex/graphql-go-subscription/blob/master/examples/simple.go

It still fairly untested and immature (completely misses the transport stuff), but let me know what you think. Feel free to report bugs or submit PRs (although I am on holiday soonish).

[gabrielruiu]

Any updates for this issue?

[maurodelazeri]

Also interested

[ulm0]

Looking forward into this as well.

[chris-ramon]

Hi guys, thanks a lot for your awesome feedback! 👍 — really appreciate it, subscriptions is being supported in the lib for a while now, closing this one, you might want to take a look to the example shown in a related GitHub comment: #49 (comment)