<ul><li>Functional programming (FP) has gained popularity for its composability, testability, and robustness.</li><li>This article explores fp-ts concepts like Option, Either, Task, Reader, and ReaderTaskEither.</li><li>We’ll build a basic CRUD app using fp-ts, pg (PostgreSQL client), and Express.js to see how these abstractions shine in real-world applications.</li><li>Setup TypeScript, Project Structure, Database Setup, Defining Models and Validation, Custom Error Handling, Service Layer, CRUD Operations and Express API have been implemented to build the CRUD app.</li><li>Containerization using Docker and Docker Compose and Writing tests using Jest have also been demonstrated.</li><li>Using functional programming patterns makes your code more predictable and reliable, especially when handling asynchronous workflows.</li></ul>

Functional Programming with fp-ts in Node.js

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