Documentation for custom PubSub

[ardatan]

#5172 (comment)

[ThePatriczek]

It would be great!
I'm trying to make Mesh as my mocking gateway that extending our schemas and I have no idea how to configure custom mocked subscriptions. @ardatan

[ardatan]

Until this, you can check the code;

pubSub accepts a path to a code file that exports a PubSub implementation based on this interface;
https://github.com/Urigo/graphql-mesh/blob/master/packages/types/src/index.ts#L75
The default PubSub implementation can be found here;
https://github.com/Urigo/graphql-mesh/blob/master/packages/utils/src/pubsub.ts