nats-streaming-server-example

NATS Streaming Server example

This example illustrates how to run a local cluster of NATS streaming servers doing some pub/sub.

Prerequisites

The example has been tested with NATS streaming server 0.15.1 and Go 1.11.6.

Nutshell

Open 1st console:

$ nats-streaming-server -c a.conf
...

Open 2nd console:

$ nats-streaming-server -c b.conf
...

Open 3rd console:

$ nats-streaming-server -c c.conf
...

Open 4th console to compile and run a producer of messages being sent to the cluster:

$ make
$ ./pub
...

Open 5th console to run a first consumer of messages:

$ ./sub
...

Open 6th console to run a second consumer of messages:

$ ./sub
...

As the consumers work as a consumer group, only one of the consumers gets a message. This is in contrast to a normal subscription model where each consumer gets a copy of each message.

Licenses

MIT