xcoderJSON is easy to read , delivered fast than xml.
etathose are both subjective, arbitrary metrics
j.r> JSON is easy to read
Modern hypster webdev in a nutshell...
etaj.r: quite :p
xcoderWhich one you would use in a project ?
Zash> hypster
Haha, amazing word
xcoder😛
xcoderThis is not my question btw.
xcoderI asked why xmpp server using xml in response ?
pep.Because that's how XMPP is specified?
xcoderI trace the the response using console.
j.rIf you have a bit more complex (nested) stuff JSON becomes really bad to read in my eyes... but yeah it's subjective
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etaxcoder: well XMPP is much older than modern JSON-using applications
etas/applications/protocols/
etait's also naturally extensible (via namespaces), which has allowed the protocol to adapt
xcoderI read an article about xmpp, "Whatsapp using ir".
xcoderIs that right ?
eta(if you think JSON is also extensible, look at the tire fire that is JSON-LD)
ZashWhatsApp is based on XMPP with a custom compression scheme.
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ZashZoom is also based on XMPP. And Google Talk, and LoL, and lots of things.
eta(and Jitsi Meet)
xcoderAlso i see a request repeated after 10 s to get the updates, what makes it different form normal setInterval !
pep.what?
ZashAre you looking at the BOSH requests?
xcoderYes :V
ZashIt's using long-polling
etaZash: (does BOSH use lo---
etasnap
xcoderI know.
xcoderAny communication application using long polling to get the updates the difference is the method.
xcoderWhat i noticed , is there no lag.
xcoderNormal SetInterval makes lag after some minutes of initialization.
ZashBecause the long-polling. The request isn't answererd until there's something new.
Zash(or a timeout, in which case it does another request)
pep.xcoder, pulling at predefined intervals wouldn't be able to get payloads faster or slower as necessary
pep.xcoder, pulling at predefined intervals wouldn't allow to get payloads faster or slower as necessary
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ZashIt could also use websockets. Or plain TCP.
xcoderWhich is more preferable [sockets - setinterval]
pep.setInterval has nothing to do with protocol, that's a JS function
xcoderI'm a web developer.
pep.Surely you could use that to implement some really bad long-polling
ZashThere was "normal" polling back one billion years ago, but I don't think anyting uses that anymore.
xcoderSockets can consume more memory ?
xcoderI never tried sockets so i can't judge it.
xcoderI'm asking if anyone has the experience.
ZashBOSH consumes more bandwidth, since you can't idle for very long before doing another connection, also more overhead with HTTP headercs and stuff.
ZashBut BOSH is also more tolerant of network issues, IP address changes, or navigation to different web page.
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ZashDesktop applications would use normal TCP sockets. Probably similar to websockets in overhead and stuff.
xcoderSo what's the recommended resources if i want to build large chat system [text - audio - video]
ZashHire a large team of experts.
xcoder"Resources" not experts.
ZashHuman Resources :P
xcoderI already developed many chat system, but not high traffic.
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GuusDon't reinvent the wheel, use one of the many available implementations.
GuusThat saves you a lot of resources
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xcoderI'm asking what is the "infrastructure" that whatsapp,imo,telegram are using.
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Zashhttps://xmpp.org/uses/instant-messaging.html and https://xmpp.org/uses/webrtc.html of any use?
pep.And don't forget to contribute back
pep.And don't "forget" to contribute back
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ZashIIRC whatsapp was using a heavily customised ejabberd in the beginning, no idea what they're doing now
Guusxcoder: to get started, install one of the freely available xmpp servers, and a client of choice. If you're into web, start with a web client like Converse.
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GuusIf you are things in action, you can learn how to adapt things to your needs.
GuusThat gives you a pragmatic approach, that you can actually see do something.
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xcoderZash thanks for the link.
xcoderGuus, Yes i will use one of these servers just a start.
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vanitasvitaexcoder: if you think about implementing some feature, take a look at the wide range of existing protocol extensions before doing your own thing 😃