meteor-community-packages / meteor-eventemitter Goto Github PK

Hi,
Does it supports emitting an event from server to client and from client to server?

We lack an emitter to simulate a state an example could be the cordova ready event where we want to be notified when a state changes, if a state is already set we will run the listener at registration.

Another use case is for the raix:push package where a push message can be set before Meteor is even ready/after ready etc. So the message can be interpreted as a state, eg. we want to get the state and updates.

cc: @arunoda (If you have input or opinion about this)

Is ist possible to emit an event from the server and process it on the client? I am trying below. I have a setInterval running on my server to emit the number data to the client but doesn't seem to work. If I move my server code to the client it works perfectly. Not sure if this is possible or out of the scope of this package.

server.js
Meteor.startup(function(){ Event = new EventEmitter(); Meteor.setInterval(function(){ console.log("Emitting") Event.emit('game-spin', { number: 6 }) },2000); })

client.js
var listener; Meteor.startup(function(){ Event = new EventEmitter(); }) Template.gamePartial.onCreated(function() { listener = function(data) { console.log('Listening custom event', data); }; Event.on('game-spin', listener); }) Template.gamePartial.onDestroyed(function() { Event.removeListener('game-spin', listener); })

It seems to me like wrapping a reactive variable in a Tracker.autorun accomplishes the exact same thing as an event emitter but with more declarative syntax as opposed to imperative syntax... Just curious when you'd want to use an event emitter as opposed to a reactive variable?

It would be awesome if this would work seamlessly with Template events. That way they can automatically unsubscribe and it gives a very unified feel to the Template code...

as meteor starts to remove underscore everywhere, we should also remove it here.

this package is used by the widely used collection2 package

Meteor-Community-Packages/meteor-collection2#386

Both return "self" which is undefined in those functions.

Would be nice to get some more docs and examples or guides.

As node.js documentation says: "Inside a listener function, this refers to the EventEmitter that the listener was attached to".

can a server event quickly show on the client ?

1. server event 'we have data'
2. client gets event -> gets data