JSON Manipulation with Functional Programming in OCaml

JSON is the universal data format for modern web APIs, but parsing and transforming it in a type-safe way can be challenging. This course teaches you how to leverage the power of functional programming in OCaml to handle JSON safely, robustly, and elegantly without relying on unsafe runtime types. You will transition from writing manual string parsers to modeling complex JSON structures using algebraic data types and writing clean, declarative transformations. Along the way, you will adopt modern OCaml practices, including type inference, pattern matching, and modular program design. What you'll learn: - Represent JSON structures using OCaml algebraic data types - Transform nested JSON payloads using higher-order functions - Implement custom encoders and decoders for type-safe serialization - Pretty-print formatted JSON strings with correct indentation - Practice functional error-handling patterns to manage malformed inputs - Apply modern OCaml tooling and virtual environments to organize your project We begin with the core concepts of functional programming, defining how data is structured and modeled in OCaml. From there, you will read through step-by-step implementations of parsers, encoders, and transformers, building up to functional pipelines that process real-world API payloads. This course is designed for beginner OCaml developers and programmers familiar with basic coding who want to learn functional data manipulation. No prior experience with OCaml or functional programming is required. Start reading today to master type-safe JSON manipulation in OCaml.