Viewing profile — slact

After last week's discussion [1], I've made some improvements and bumped up this project from alpha to beta status. I've also run some benchmarks, and they're reasonably impressive…

Thanks! I'll be adding a sample JS subscriber client and some sample code with that as well.

> besides directive prefix The old setting is still recognized. > Subscribers" section of "Push Module" should include websocket Nope, push module didn't do websocket. You may be t…

> global message id / global channel Yeah, I don't have global ids. every message is bound to the channel it was published to. But I do understand that for your use case, (user + a…

No, ack/nack would need to be implemented in the client or the application. However, messages do not disappear from the queue when received. All subscriber requests are idempotent,…

Nice project, and a curious featureset overlap, too... > We have a concept of "reliable pub sub" [...] Does the redis store you have do something similar (I can not see backing lis…

Well, if it ain't broke, as they say... here's a page on the differences between Nchan and the Push Module: https://nchan.slact.net/upgrade . One important thing I forgot to add is…

That's correct, that feature is for authentication only. I may add a feature to replace the message with the back end response. By multiplexing I mean that a single websocket (or a…

Yes. All messages are buffered for a configurable length of time. Longpoll and EventSource clients receive the last message id with each message, and if interrupted can be resumed …

Yes, backend-authenticated access control is possible. See https://nchan.slact.net/details#authenticate-with-nchan_auth...

Yep, I'll be adding an example js client, but I don't intend on standardizing this. Mostly because I'm also a js guy and I like mootools, and I don't want to start a best-js-framew…

> the execution of middlewares when a user publishes a message (to filter them or something else) You can do that with nchan: https://nchan.slact.net/details#authenticate-with-ncha…

Nchan is about 12K lines of C, I'd say 2-5K of that is dealing with Nginx guts. To get rid of Nginx entirely, you'd need to add an event loop, forking and multiprocess management, …

I'm not familiar with MQTT, I've just glanced over the spec right now. Nchan is basically a message broker with channels, optimized for message broadcast. MQTT is a TCP-level proto…

Interesting, I'll read through this. Nchan code is quite modular, so it would be pretty easy to add some kind of negotiation like this. Let's talk more. For reference, here's the o…

Yes, this is a different project, although they are related. Push Stream is a fork of my Nginx HTTP Push Module, so they both descend from the same original codebase. Push Stream u…

I consider those two and socket.io my main competition. Nchan is built to scale, but of course you'd need some numbers to back that up. I plan on doing benchmarks once I iron out t…

Well, it would be very easy to make a realtime 4chan-like thing with Nchan, but it's far from the only use case. It's a general-purpose server and pubsub proxy. The name is a play …

This is a huge refactoring of an old project of mine -- the Nginx HTTP Push Module. I'm wondering if anyone here has used it. Most importantly, I want feedback on the documentation…

Everything is pretty much as efficient as vanilla nginx. There are some O(log(n)) lookups, but i've not noticed CPU usage hit anything even remotely suspicious (fixed bugs aside). …

Beep. I wrote this. Questions, comments -- ask away.