Optimizing a Notification Service with Ruby on Rails and Sidekiq

Sanjeev Kumar
June 2, 2024
Discover how to optimize a notification service using Ruby on Rails and Sidekiq, with a focus on performance, scalability, and reliability.

Optimizing a notification service is essential for ensuring efficient delivery and performance. In this article, we'll explore how to optimize a notification service using Ruby on Rails for the API server and Sidekiq for background job processing.

Architecture Overview

Our optimized notification service will consist of the following components:

  1. API Server: A Ruby on Rails application that exposes an API for triggering notifications.
  2. Background Processing: Sidekiq, a background job processing library for Ruby, to handle time-consuming tasks and improve performance.
  3. Database: PostgreSQL or MySQL for storing notification data and managing real-time updates.

Designing the API Server with Ruby on Rails

  1. Use Ruby on Rails: Leverage the Ruby on Rails framework to build a robust and scalable API server for handling notification requests.
  2. Implement RESTful endpoints: Design RESTful endpoints for creating, updating, and deleting notifications.
  3. Utilize ActiveRecord: Use ActiveRecord, Rails' ORM (Object-Relational Mapping) library, for interacting with the database and managing notification data efficiently.
    # Example of a NotificationsController in Ruby on Rails
    class NotificationsController < ApplicationController
      def create
        notification =
          render json: { message: 'Notification created successfully' }, status: :created
          render json: { error: 'Failed to create notification' }, status: :unprocessable_entity


      def notification_params
        params.require(:notification).permit(:message, :recipient_id)


Implementing Background Processing with Sidekiq

  1. Integrate Sidekiq: Integrate Sidekiq into your Ruby on Rails application to offload time-consuming tasks, such as sending notifications, to background workers.
  2. Define Sidekiq workers: Create Sidekiq worker classes to perform specific tasks asynchronously, ensuring that the main application remains responsive.
  3. Use Redis for job queuing: Sidekiq relies on Redis for job queuing, so ensure that Redis is properly configured and running.
    # Example of a Sidekiq worker for sending notifications
    class NotificationWorker
      include Sidekiq::Worker

      def perform(notification_id)
        notification = Notification.find(notification_id)
        # Logic for sending the notification


Scalability and Performance Optimization

  1. Horizontal scaling: Scale your Ruby on Rails application horizontally by deploying multiple instances behind a load balancer to handle increased traffic.
  2. Caching: Implement caching strategies using tools like Redis or Memcached to reduce database load and improve response times.
  3. Monitoring and optimization: Use tools like New Relic or Scout to monitor performance metrics, identify bottlenecks, and optimize the notification service for efficiency.

By optimizing a notification service with Ruby on Rails and Sidekiq, you can enhance performance, scalability, and responsiveness, ensuring timely delivery of notifications while maintaining system efficiency. Remember to continuously monitor and fine-tune your setup to meet evolving demands and maintain optimal performance.

Written by:
Sanjeev Kumar
Engineering, SuprSend

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