“Why choose Erlang for web applications? Discover the answer hands-on by building a simple web service with this book. If you’re an experienced web developer who knows basic Erlang, you’ll learn how to work with REST, dynamic content, WebSockets, and concurrency through several examples.” • The book explains how Erlang’s strengths (fault-tolerance, scalability, process-oriented concurrency) make it well-suited for web services. • It guides you through building a service using the Yaws web server, showing how to serve static and dynamic content, handle sessions, process RESTful requests, and use JSON or XML. •It also covers more advanced topics: file upload, streaming, WebSockets, using OTP to build an application server, and integrating with databases or other systems. •There is a practical, example-driven focus — by the end of the book, you’ll have built a working web service and understand how to structure it with OTP.