Swift JSON Parsing: Encoding and Decoding with Codable

Every modern iOS application relies on data from the web, which is almost always delivered in JSON format. Understanding how to seamlessly convert this data into Swift models is a foundational skill for any aspiring mobile developer. This text-based course guides you through the process of parsing JSON using Swift's powerful native APIs. You will transition from manual, error-prone parsing techniques to writing clean, type-safe Swift code that handles complex nested structures, custom keys, and dynamic API responses with ease. What you'll learn: - Understand the core concepts of serialization, encoding, and decoding in Swift. - Map complex and nested JSON structures to clean Swift data models using the Codable protocol. - Configure custom key mappings using CodingKeys to handle mismatched API naming conventions. - Handle decoding errors gracefully using robust try-catch blocks and modern Swift error handling. - Integrate JSON parsing with modern Swift concurrency (async/await) to fetch and decode network data. - Parse dynamic and heterogeneous JSON arrays safely without crashing your application. You will begin by exploring fundamental serialization concepts before progressing through step-by-step written explanations of real-world JSON structures. Each conceptual lesson is paired with practical Swift code snippets designed to reinforce your understanding through reading and analysis. This course is designed for beginner Swift developers and iOS hobbyists who want to connect their apps to external web APIs. No prior experience with network programming or JSON is required. Start reading today to build the skills needed to connect your Swift applications to the rest of the digital world.