This is the dependency module for newsletter system in backend's admin panel

RabbitMQ

First, if you don't have a RabbitMQ service, you need to deploy a RabbitMQ service.

You can install it with apt-get (Ubuntu) or install it with docker (development)

Excample
sudo docker pull rabbitmq
sudo docker run -d -e RABBITMQ_NODENAME=musicoin-rabbit --name musicoin-rabbit -p 5672:5672 rabbitmq

Change .env

Then you need to set the environment variables for sendgrid service or your MQ service

copy .env.default to .env and replace environment variables with yours.

Run the consumer server

Then you can Run the consumer server, so than the newsletter system can use it.

npm start