Production-Ready Elixir: Practical Logging and Error Handling

Running applications in production requires deep visibility and the ability to recover from failures gracefully. This text-based course guides you through establishing robust monitoring and fault tolerance in your Elixir applications. You will progress from understanding basic error concepts to implementing structured logging and modern observability patterns. By studying clear explanations and practical code examples, you will learn to write resilient Elixir code that is easy to debug and maintain under production loads. What you'll learn: - Understand the core philosophy of Elixir fault tolerance and supervision trees. - Configure the native Elixir Logger for structured JSON output and metadata tracking. - Implement custom error handlers and gracefully rescue expected exceptions. - Integrate Telemetry to capture and report application performance metrics. - Apply best practices for managing log levels and filtering sensitive production data. - Debug live production issues efficiently using system logs and error reports. The course begins with foundational terminology, exploring Elixir's "let it crash" philosophy and basic error types, before moving step-by-step into advanced logging configurations, structured metadata, and modern telemetry integrations. It is designed for developers who are new to managing Elixir in production and want to build a solid foundation in application observability, with no prior operations experience required. Start reading today to build more reliable and maintainable Elixir applications.