Developing a Chat Application with Ruby


A chat application is a real-time messaging platform that allows users to send and receive messages instantly. In this guide, we'll explore how to create a chat application using Ruby.


Before you start, make sure you have the following prerequisites:

  • Proficiency in the Ruby programming language
  • A code editor (e.g., Visual Studio Code, Sublime Text)
  • Basic knowledge of web development (HTML, CSS, JavaScript)
  • Familiarity with a web framework (e.g., Ruby on Rails, Sinatra)

Step 1: Set Up the Project

Create a new Ruby project folder and organize it into directories. You'll need a web-based framework to build your chat application. Ruby on Rails is a popular choice for this purpose. Set up your development environment and install the necessary gems.

Step 2: Design the User Interface

Design the user interface for your chat application. Create pages for sending and receiving messages, user profiles, and chat rooms. Use HTML and CSS to design the interface, and take advantage of the framework's view templates for rendering dynamic content.

Step 3: Implement Real-Time Messaging

Real-time messaging is a critical feature of a chat application. You can achieve this using technologies like WebSockets or long polling. One popular gem for adding real-time functionality to your Ruby application is 'Faye.' Here's a simplified example:

# In your Ruby on Rails application
# Add 'faye' gem to your Gemfile
# Run 'bundle install'
# Create a chat room model and table
# In your chat room's show view
<%= render 'messages/messages' %>
# In your messages/_messages.html.erb partial
<%= faye_subscribe_to chat_room_messages_path(@chat_room) %>

Step 4: Enhance Features

Enhance your chat application by adding features like user authentication, message history, and user online status indicators. Consider securing your chat application with user accounts and permissions. You can also explore mobile app development for a more comprehensive chat experience.


Developing a chat application with Ruby is an engaging project that lets you explore real-time communication and web development. Ruby's ecosystem, combined with web frameworks and real-time libraries, makes it a suitable choice for building chat applications.

Use your chat application to connect with friends, family, or coworkers. Customizing your app to include additional features like file sharing or emojis can provide an even better user experience.

Enjoy creating your chat application with Ruby!