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FPWD: PubSub

From: Notifier <notifier@aries.w3.org>
Date: Thu, 20 Oct 2016 06:43:52 +0000



An open, simple, web-scale and decentralized pubsub protocol. Anybody can play.

As opposed to more developed (and more complex) pubsub specs like Jabber Publish-Subscribe [XEP-0060] this spec&#x27;s base profile (the barrier-to-entry to speak it) is dead simple. The fancy bits required for high-volume publishers and subscribers are optional. The base profile is HTTP-based, as opposed to XMPP (see more on this below).

To dramatically simplify this spec in several places where we had to choose between supporting A or B, we took it upon ourselves to say &quot;only A&quot;, rather than making it an implementation decision.

We offer this spec in hopes that it fills a need or at least advances the state of the discussion in the pubsub space. Polling is extremely wasteful and high latency. We think a decentralized pubsub layer is a fundamental, missing layer in the Internet architecture today and its existence, more than just enabling the obvious lower latency feed readers, would enable many cool applications, most of which we can&#x27;t even imagine. But we&#x27;re looking forward to decentralized social networking.

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