Modular Web Development with Phoenix

Modern web applications require clean boundaries to remain maintainable as they scale. Developing with Phoenix offers incredible performance, but organizing your code effectively is the key to long-term success. This text-based course guides you through the core principles of isolating your core business logic from your web presentation layer. You will start with foundational Phoenix concepts and architectural patterns before moving on to practical structural techniques. By the end of this course, you will be able to write highly testable Elixir applications that are easy to update, scale, and maintain. What you will learn: Understand the core architecture of Phoenix and Elixir applications; Separate business logic from web controllers using context modules; Design clean boundaries for easier unit and integration testing; Build modular web interfaces that adapt to changing requirements; Apply modern Elixir patterns, including type specifications and robust error handling; Structure database queries and schemas to prevent logic leaks. Our structured text lessons begin with essential terminology and design principles, followed by step-by-step code structures and architectural patterns. This course is designed for backend developers, web engineers, and Elixir beginners who want to learn professional application design from the ground up. Start building cleaner, more maintainable Elixir applications today.