Building Real-Time Shopping Carts with Phoenix and PubSub

Modern web applications require instant, real-time updates to keep users engaged, especially in e-commerce. Building a responsive shopping cart that updates seamlessly across multiple devices is a crucial skill for web developers. This text-only course guides you through the process of implementing and testing a fully functional real-time shopping cart using the Phoenix framework. In this course, you will learn to: - Understand the foundational concepts of Phoenix Channels, PubSub, and real-time state management. - Build interactive cart features that update instantly across different client sessions. - Configure Phoenix PubSub to broadcast state changes efficiently. - Apply modern Elixir testing practices, including acceptance tests, to ensure a reliable user experience. - Explore modern real-time alternatives like Phoenix LiveView for dynamic UI updates. - Practice writing clean, maintainable Elixir code with step-by-step written exercises and code examples. You will start with the fundamental architecture of Phoenix's real-time communication layer before moving on to hands-on implementation and robust test automation. The course progresses logically from core definitions to complete, tested features. This course is designed for web developers new to real-time systems; basic familiarity with Elixir is helpful, but we start with the absolute essentials. Start reading today to master real-time web development with Phoenix.