meteor - How to only subscribe to database updates (without fetching)? -

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i have large database , want send actual data updates client.
not want each client fetch whole set of data done natively meteor's pub/subs.
tried ground:db still fetched data.

how can achieve this?

to achieve can observechanges on whole collection , channel changes (added, changed, removed) each publication handler.

a rough application :

var pubhandlers = []  meteor.publish('changes stream', function handlepublication() {   pubhandlers.push(this)   this.onstop(() =>     pubhandlers.splice(pubhandlers.indexof(this), 1)   )   this.ready() })  mycollection.find().observechanges({   added : function docadded(id, doc) {     for(let pubhandler of pubhandlers) {       pubhandler.added('my collection', id, doc)     }   },   changed : function docchanged(id, fields) {     for(let pubhandler of pubhandlers) {       pubhandler.changed('my collection', id, fields)     }   },   removed : function docremoved(id) {     for(let pubhandler of pubhandlers) {       pubhandler.removed('my collection', id)     }   } })

note in case docremoved throw if document didn't exist on client.
in case, updates on collection sent subscribed clients. may want use smartly distributed mongo.cursor share load in cleaner way.


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