There are many Scala-Based Framework to develop RESTful Web Services. Most popular frameworks are:
1.Play Framework- we call REST API URLs as routes. We place all routes at once place in Play framework. It is a stateless web framework to develop REST API easily.
2.Scalatra Framework-It is very simple and easy Scala-based web framework to develop REST API
3.Spray Framework-It is very concise and built on top of Akka framework so it’s better to develop REST API using Actor Model.
4.Lift Framework-It allows routing using Pattern Matching concept.