Caliban is a purely functional library for building GraphQL servers and clients in Scala.

The design principles behind the library are the following:

• minimal amount of boilerplate: no need to manually define a schema for every type in your API.
• high performance: while every public interface is pure and immutable, library internals have been optimized for speed.
• clean separation between schema definition and implementation: schema is defined and validated at compile time using Scala standard types, resolver (RootResolver) is a simple value provided at runtime.

Here is a partial list of companies using Caliban in production.

Want to see your company here? Submit a PR!

• Anduin Transactions
• AnyMind Group
• AutoScout24
• BusinessChat.io
• Carvana
• Conduktor
• Credimi
• Devsisters
• Fugo.ai
• LeadIQ
• Sanjagh.pro
• Soundtrack Your Brand
• StepZen
• Undo