JSON Response Transformation in Elixir with Poison

Handling external API data is a core requirement for modern web applications, but raw JSON must be safely converted before your application can use it. This text-based course guides you through the process of decoding JSON payloads into native Elixir data structures while ensuring your application remains resilient to unexpected inputs. You will start with the absolute fundamentals of JSON serialization, learning how the Poison library maps keys to maps, structs, and lists. By completing this course, you will be able to confidently ingest external API data, transform complex nested JSON structures, and build robust error-handling pipelines that keep your Elixir applications running smoothly. What you'll learn: - Understand the core principles of JSON serialization and deserialization in Elixir - Configure the Poison library to decode JSON responses into native maps and custom structs - Apply pattern matching to safely extract deeply nested values from API payloads - Implement robust error handling for malformed JSON and unexpected API response codes - Practice modern Elixir conventions including type hints and pipe operations for cleaner data flows This course begins with foundational concepts of data encoding before moving into practical, step-by-step parsing scenarios. Through clear written explanations and structured code examples, you will learn to manage real-world data transformation workflows. This course is designed for beginner to intermediate Elixir developers who want to master API integration. No prior experience with the Poison library is required, though a basic understanding of Elixir syntax is helpful. Start reading today to master JSON transformation in your Elixir projects.