go-libp2p
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libp2p
examples: add basic pubsub-with-rendezvous example
I'm evaluating libp2p's pubsub implementation for coordinating a dynamic number of distributed nodes. I noticed there was a neat (but IMO rather complex and hard to quickly grok) example for pubsub using mdns, but as my nodes could span multiple networks I needed to use rendezvous instead.
This PR is a pared-down example that mashes together pubsub/chat and chat-with-rendezvous, stripping away all of the UI prettiness in order to more clearly show the most basic setup needed to get a shared pubsub topic sent to 2+ nodes.
I haven't yet tested this on multiple PCs / across NAT barriers, but it does work with multiple processes running locally.
Does it make sense to exhaust the combinatory space here, and have a pubsub with mdns, a pubsub with rendezvouz, and a chat with rendezvouz example? Every example creates maintenance burden for years to come, and we should only add it if it actually adds value over what we currently have.
That's fair - you're welcome to reject this PR, or suggest something else. I just wanted to share the product of a couple hours of trying to work out pubsub with rendezvous in case it was useful to anyone else.
@vyzo, what do you think? You're more familiar with our pubsub code.
@smartin015 : CI is failing. Can you please investigate to try and get CI to pass?
@smartin015 : CI is failing. Can you please investigate to try and get CI to pass?
Can do - looks like some deprecation notices are the issue. I'll try to have a fix in by the next couple of days.
Okay @BigLep - pushed changes and ran go vet and staticcheck locally with no errors. I didn't see any other issues in the workflow logs. Can you please run them again? Thanks!
And yet... apparently I needed to go mod tidy after mucking with the import names. Apologies, that's also now checked in.
