Elixir OTP Foundations: Building Concurrent Servers with GenServer

Building scalable, fault-tolerant systems requires a solid grasp of concurrency, but managing raw processes manually can quickly become complex. This course guides you through Elixir's Open Telecom Platform (OTP), focusing on how to build robust, stateful server processes with confidence. You will transition from writing sequential Elixir code to architecting resilient, concurrent systems that can handle real-world workloads. By completing this course, you will be able to design, implement, and supervise stateful server processes that run concurrently and recover gracefully from failures. What you'll learn: - Understand the fundamentals of the Actor model and Elixir process concurrency. - Implement core GenServer callbacks to initialize state and handle synchronous calls and asynchronous casts. - Structure resilient supervision trees to automatically detect and recover from process failures. - Manage process state safely without race conditions or manual thread locking. - Apply modern telemetry and structured logging to monitor your running OTP servers. - Design clean APIs that hide GenServer implementation details from the rest of your application. This course starts with foundational concurrency definitions and process mechanics before moving step-by-step through GenServer implementation, supervision strategies, and practical architectural patterns. You will learn through clear written explanations, detailed code walkthroughs, and practical design exercises. This course is designed for developers who already know basic Elixir syntax and want to master the concurrent, stateful side of the language. No prior experience with OTP or concurrent system design is required. Start reading today to unlock the true power of Elixir concurrency.