NATS subjects vs STAN channels

[Nick]

Dear All,

I'm pretty new to NATS. I followed the documentation but I wasn't able to get the difference between subjects (NATS) and channels  (STAN). 

Thank you for your help

P.S. 

I'm aware that STAN will be discontinued but for now I'll try to work with it. 

[iv...@synadia.com]

A channel is somehow similar to a subject in NATS, that is, it is the "subject" the publishers are publishing to and subscribers consume from.

Here is a brief description of a channel: https://docs.nats.io/legacy/stan/intro/channels

Also, a message published by a core NATS publisher on "foo" would not be stored in a STAN channel called "foo", and therefore not received by a STAN subscriber on "foo".

This is described here: https://docs.nats.io/legacy/stan/intro/relation-to-nats

As you know, since NATS Streaming is deprecated, I am not sure if it is the right thing for you to invest in this technology. If you start a new project and are new to NATS in general, you should focus your efforts in JetStream.