Functional Web Endpoints in Scala with Tapir and http4s

Building reliable web services requires a strong foundation in type-safe routing and functional programming principles. This text-based course guides you through the process of creating and loading product data endpoints using Tapir and http4s in Scala. You will start with the essential terminology, understanding how purely functional I/O and declarative API design make your web applications more predictable and easier to maintain. Next, you will transition into writing clean, testable code to handle HTTP requests and responses. What you will learn: Understand the core concepts of functional web programming in Scala; Define type-safe, self-documenting API endpoints using Tapir; Integrate Tapir routes with http4s servers for seamless request handling; Implement streaming endpoints to load and process large sets of product data efficiently; Write unit and integration tests to verify your endpoint behavior; Apply modern Scala practices, including type classes and functional error handling. Through clear explanations and practical code examples, you will explore the entire lifecycle of an HTTP request, from route definition to database interaction and response streaming. This course is designed for backend developers and Scala beginners who want to transition into functional web development. No advanced functional programming experience is required. Start reading today to build reliable, type-safe APIs with confidence.