SimpleExternalRabbitMQ

const rabbitMq = new SimpleExternalRabbitMQ('nofication-service');

const messages = [
    {
        userID: 2344,
        message: "Hello, Ivan"
    },
    {
        userID: 7444,
        message: "Hello, Petr"
    }
];

rabbitMq.publishMultipleMessages(
    'push-notifications',
    messages.map(m => JSON.stringify(m)),
    {
        ContentType: "application/json",
        Headers: {
            "X-Source": "simple"
        }
    }
)

ss.info(rabbitMq.getErrors());