Custom Subscription Support

[pawan (Pawan Rawal)]

@maaft

type Subscription {
   copyProject(projectId: String!, targetUser: UserRef): Progress!
    @custom(
      http: {
        url: "${GQL_URL}"
        method: POST
        graphql: "subscription($projectId: String!, $targetUser: UserRef) {copyResearchBox(projectId: $projectId, targetUser: $targetUser)}"
      }
    )
}

Sounds like an interesting use case where you are trying to subscribe to updates for subscriptions from a remote GQL server. I was averse to the idea of supporting this because it can end up turning Dgraph into a proxy layer where it’s used to subscribe over HTTP URL’s from the web. Though based on this and Will we be able to subscribe to a query? it makes sense for certain use cases. We can look into supporting this in the next quarter. Marking this as accepted.