Where should I declare the subscription/s?

[lobosan]

Dear Arunoda,

I'm working with FlowRouter and I'm declaring one instance of SubsManager() per collection in the file client/helpers/flow-router like this:

DPASubs = new SubsManager();
OrganizacionesSubs = new SubsManager();
CialcosSubs = new SubsManager();
UsersSubs = new SubsManager();
InviteSubs = new SubsManager();
InvitationsSubs = new SubsManager();

An example of how I'm using these instances in a template is:

Template.nuevoProductor.onCreated(function () {
  let self = this;
  self.ready = new ReactiveVar();
  self.autorun(function() {
    let handleDPA = DPASubs.subscribe('dpa');
    let handleOrganizaciones = OrganizacionesSubs.subscribe('organizaciones');
    let handleCialcos = CialcosSubs.subscribe('cialcos');
    self.ready.set(handleDPA.ready());
    self.ready.set(handleOrganizaciones.ready());
    self.ready.set(handleCialcos.ready());
  });
});

So my questions are:

1. Do I need an instance of SubsManager for each collection? or only one global instance?
2. Where should I declare this/these instance/s of SubsManager?

[pdiniz13]

I would also like to know the answer to this, since they both seem to have worked.

[arunoda]

1.Do I need an instance of SubsManager for each collection? or only one global instance?

It's upto you. Think like this. If used a one, all the publications are cached like the same. So, try to keep up with the cacheOptions. (Specially the cacheLimit option)

Other case is the invalidation. If used one, it any subscription added to the cache. All other places uses sub.ready() will re-run. It may cause some perf issues.

2.Where should I declare this/these instance/s of SubsManager?

May be in the same place as you declare collections.