[diggan]

There is some prototype work done in master already (if you build go-ipfs from source).

   $ ipfs pubsub --help
   
   USAGE
     ipfs pubsub - An experimental publish-subscribe system on ipfs.
   
   SYNOPSIS
     ipfs pubsub
   
   DESCRIPTION
   
     ipfs pubsub allows you to publish messages to a given topic, and also to
     subscribe to new messages on a given topic.
     
     This is an experimental feature. It is not intended in its current state
     to be used in a production environment.
     
     To use, the daemon must be run with '--enable-pubsub-experiment'.
   
   SUBCOMMANDS
     ipfs pubsub ls                    - List subscribed topics by name.
     ipfs pubsub peers                 - List all peers we are currently pubsubbing with.
     ipfs pubsub pub <topic> <data>... - Publish a message to a given pubsub topic.
     ipfs pubsub sub <topic>           - Subscribe to messages on a given topic.
   
     Use 'ipfs pubsub <subcmd> --help' for more information about each command.

[fizzbatter]

Wow, thank you! Very interesting! Quite odd that none of my follows mentioned this going live, must be an issue of too many github issues.

Time to dig into this a bit!

edit: For anyone else perplexed and surprised by me, seems `floodsub` is their moniker for the new tech, and it was (in part) merged in here: https://github.com/ipfs/go-ipfs/pull/3202

This is really, really cool! Also, if this implementation is robust and performant, this is huge for IPFS.

[lgierth]

Yes we haven't been very vocal about it yet because it's not yet part of a go-ipfs release -- it'll be in the next release, go-ipfs v0.4.5.

Note on the name: floodsub is one specific implementation of pubsub. There are many ways to do pubsub, and we chose to go with a naive and simple flooding implementation for now. In the future there will be more, and you'll be able to use different implementations simultaneously.