ajax - CouchDB - Continuous feed using jQuery -


after reading similar questions here, i'm curious whether @ possible?

i understand can make below work, wrapping in setinterval function, repeatedly calls check-for-changes function, rather use continuous polling.

the database regularly gets updated every minute during peak times, seems waste keep polling database during off-peak times...

$.getjson('http://localhost:5984/db?callback=?', function(db) {     console.log(db.update_seq);     $.getjson('http://localhost:5984/db/_changes?since='+db.update_seq+'&feed=continuous&callback=?', function(changes) {         console.log(changes);     }); });

firebug shows when change indeed made, happens, null returned.

i'm on same domain, calling page localhost/index.php

rather using continuous or long-polling, instead adopt adaptive strategy. perhaps start @ 1 minute intervals. if there no updates, 2 minutes, 3, 4, 5 etc. if there updates interval can modified reflect time until next expected update.

basically boils down how important notifications of updates in near-real-time , how large delay willing deal with.


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