Jose Miguel Gallas Olmedo There are two things stored in the database to make a subscription work. The first one is a subscription object which looks something like this:

{

    type: 'Subscription',

    field: 'memeAdded',

    GraphQLSchemaId: 1,

    topic: 'memeCreated',

    filter: JSON.stringify({

      match: ['$payload.memeAdded.photourl', 'https://.*']

    }),

    createdAt: time,

    updatedAt: time

  }

And then a resolver has to hook up to that particular subscription:

{

  ...

  publish: "memeCreated"

}

Right now topics and filters are not being implemented in the UI but they do exist in the server. I suggest you take a look at the lengthy description in the original subscriptions PR: https://github.com/aerogear/data-sync-server/pull/32