This code is demonstrating event handling issues with hemera-nats-streaming plugin. To reproduce, first launch a nats streaming instance via:

docker run -d -p 4222:4222 -p 8222:8222 nats-streaming

Alternatively change the configuration in publisher.js and subscriber.js files to point it to a existing nats streaming server.

Then launch publisher and 3 subscriber instances using:

npm install
npm start

Scripts will continue to run until any handler receives the same event twice or there is a gap in an event sequence number.