@pixellot/pxlt-rabbit-handler/__tests__/integration/utilities/rmq-setup-scripts.js

A generic class that handles RabbitMQ connection, consume and produce functionality.

const setupSubscriptionRetry = (channel) => {
    const config = {
        exchanges: {
            subscriptionsExchange: {
                name: 'subscriptions-exchange',
                type: 'topic'
            }
        },
        queues: {
            subscriptionsHandler: {
                name: 'subscriptions',
                routingKey: '#'
            }
        }
    };

    return channel.assertQueue(config.queues.subscriptionsHandler.name, { durable: true })
        .then(() => channel.assertExchange(config.exchanges.subscriptionsExchange.name, config.exchanges.subscriptionsExchange.type, { durable: true }))
        .then(() => channel.bindQueue(config.queues.subscriptionsHandler.name, config.exchanges.subscriptionsExchange.name, config.queues.subscriptionsHandler.routingKey))
        .then(() => channel.assertExchange(`${config.exchanges.subscriptionsExchange.name}.retry`, config.exchanges.subscriptionsExchange.type, { durable: true }))
        .then(() => channel.assertQueue(`${config.queues.subscriptionsHandler.name}.retry.1.seconds`, {
            durable: true,
            messageTtl: 1000,
            deadLetterExchange: config.exchanges.subscriptionsExchange.name
        }))
        .then(() => channel.bindQueue(`${config.queues.subscriptionsHandler.name}.retry.1.seconds`, `${config.exchanges.subscriptionsExchange.name}.retry`, '*.1'))
        .then(() => channel.assertQueue(`${config.queues.subscriptionsHandler.name}.retry.2.seconds`, {
            durable: true,
            messageTtl: 2000,
            deadLetterExchange: config.exchanges.subscriptionsExchange.name
        }))
        .then(() => channel.bindQueue(`${config.queues.subscriptionsHandler.name}.retry.2.seconds`, `${config.exchanges.subscriptionsExchange.name}.retry`, '*.2'))
        .then(() => channel.assertQueue(`${config.queues.subscriptionsHandler.name}.retry.3.seconds`, {
            durable: true,
            messageTtl: 3000,
            deadLetterExchange: config.exchanges.subscriptionsExchange.name
        }))
        .then(() => channel.bindQueue(`${config.queues.subscriptionsHandler.name}.retry.3.seconds`, `${config.exchanges.subscriptionsExchange.name}.retry`, '*.3'))
        .then(() => channel.assertQueue(`${config.queues.subscriptionsHandler.name}.retry.4.seconds`, {
            durable: true,
            messageTtl: 4000,
            deadLetterExchange: config.exchanges.subscriptionsExchange.name
        }))
        .then(() => channel.bindQueue(`${config.queues.subscriptionsHandler.name}.retry.4.seconds`, `${config.exchanges.subscriptionsExchange.name}.retry`, '*.4'));
};

const setupSimpleExcahngeAndQueue = (channel) => {
    const config = {
        exchanges: {
            subscriptionsExchange: {
                name: 'subscriptions-exchange',
                type: 'topic'
            }
        },
        queues: {
            subscriptionsHandler: {
                name: 'subscriptions',
                routingKey: '#'
            }
        }
    };

    return channel.assertQueue(config.queues.subscriptionsHandler.name, { durable: true })
        .then(() => channel.assertExchange(config.exchanges.subscriptionsExchange.name, config.exchanges.subscriptionsExchange.type, { durable: true }))
        .then(() => channel.bindQueue(config.queues.subscriptionsHandler.name, config.exchanges.subscriptionsExchange.name, config.queues.subscriptionsHandler.routingKey));
};

module.exports = {
    setupSubscriptionRetry,
    setupSimpleExcahngeAndQueue
};