updated code to include caliban

src/content/code/code.md

@@ -586,6 +586,55 @@ val query = graphql"{ hello }"
 Executor.execute(schema, query) map println
 ```
 
+#### [Caliban](https://ghostdogpr.github.io/caliban/) ([github](https://github.com/ghostdogpr/caliban)): Caliban is a purely functional library for building GraphQL servers and clients in Scala
+
+An example of a GraphQL schema and query with \`caliban\`:
+
+```scala
+// Define a case class for our Schema
+case class Character(name: String, age: Int)
+
+def getCharacters(): List[Character] = ???
+def getCharacter(name: String): Option[Character] = ???
+
+// The schema is derived from our case class [[Character]]
+// We use [[CharacterName]] to name our arguments.
+case class CharacterName(name: String)
+// Our Query schema is just a case class
+case class Queries(characters: List[Character],
+                   character: CharacterName => Option[Character])
+// We build our Query schema by providing resolvers that satisfy our Queries case class
+val queries = Queries(getCharacters, args => getCharacter(args.name))
+
+import caliban.GraphQL.graphQL
+import caliban.RootResolver
+
+// Our first line of Caliban! pass your `queries` val to the RootResolver
+// and give that to a function `graphQL` that returns a graphQL api. 
+val api = graphQL(RootResolver(queries))
+
+// In order to process requests, you need to turn your API into an interpreter
+for {
+  interpreter <- api.interpreter
+} yield interpreter
+
+case class GraphQLResponse[+E](data: ResponseValue, errors: List[E])
+
+// Here is an example of querying your API with a console app.
+val query = """
+  {
+    characters {
+      name
+    }
+  }"""
+
+for {
+  result <- interpreter.execute(query)
+  _      <- zio.console.putStrLn(result.data.toString)
+} yield ()
+
+```
+
 ### OCaml / Reason
 
 #### [ocaml-graphql-server](https://github.com/andreas/ocaml-graphql-server): GraphQL server library for OCaml and Reason
@@ -604,6 +653,7 @@ Executor.execute(schema, query) map println
 - [Swift / Objective-C iOS](#swift-objective-c-ios)
 - [Python](#python-1)
 - [R](#r)
+- [Scala](#scala) 
 
 ### C# / .NET
 
@@ -655,6 +705,10 @@ Executor.execute(schema, query) map println
 
   - [graphql-kotlin](https://github.com/ExpediaGroup/graphql-kotlin/): A set of GraphQL libraries that includes a lightweight, typesafe GraphQL HTTP client.
 
+### Scala
+
+   - [Caliban](https://ghostdogpr.github.io/caliban/): Functional GraphQL library for Scala, with client code generation and type-safe queries.
+
 ### Swift / Objective-C iOS
 
   - [Apollo iOS](https://www.apollographql.com/docs/ios/) ([github](https://github.com/apollographql/apollo-ios)): A GraphQL client for iOS that returns results as query-specific Swift types, and integrates with Xcode to show your Swift source and GraphQL side by side, with inline validation errors.