nats.docs/nats_server/clients.md

NATS Clients

The nats-server doesn't come bundled with any clients. But most client libraries come with tools that allow you to publish, subscribe, send requests and reply messages.

If you have a client library installed you can try using a bundled client. Otherwise you can easily install some clients.

If you have Go installed:

> go get https://github.com/nats-io/go-nats-examples/tools/nats-pub
> go get https://github.com/nats-io/go-nats-examples/tools/nats-sub

Or download a zip file

You can install pre-built binaries from the go-nats-examples repo

Testing your setup

First start a nats-server. Then you can on two different terminal windows:

Start a subscriber:

> nats-sub ">"
Listening on [>]

Publish your first message:

> nats-pub hello world
Published [hello] : 'world'

On the subscriber window you should see:

[#1] Received on [hello]: 'world'