Apollo-graphql: using withFilter

Question

could you, please explain the origin of variables param passed to the withFilter function. An example provided here does not explain it.

A payload is provided when publish is called, but variables...

From where do we get them? and if they are needed to be set, then how can we achieve this?

Answer 1

Ok, I've figured it out. variables are variables that are passed to a subscription.

For instance, if a subscription looks like this:

followUser(userId: String!): SomeType!

Then userId will be in variables