Release Notes

This release contains several new features as well as a few performance improvements.

Schema transformations

You can now transform types, fields or arguments of an existing GraphQL object. This gives you an easy alternative to modifying schemas. You can also implement your own custom transformers.

api
  .transform(Transformer.RenameType("InnerObject" -> "Renamed"))
  .transform(Transformer.ExcludeField("Query" -> "myField"))

Scala 3 union type derivation

You can now derive schemas from Scala 3 union types, and they will be translated to GraphQL unions:

type Payload = Foo | Bar
given Schema[Any, Payload] = Schema.unionType[Payload] // in GraphQL => union Payload = Foo | Bar

New features

• Added schema transformations #2218 by @ghostdogpr and @kyri-petrou
• Added derivation of Schema for Scala 3 union types #2215 by @oyvindberg
• Added @semanticNonNull directive support #2180 by @XiNiHa
• Added a Scala 3-specific method for building custom schemas #2211 by @kyri-petrou

Performance improvements

• Optimized random small things #2203 by @kyri-petrou
• Updated zio-prelude and optimized variable coercer #2213 by @kyri-petrou
• Removed usage of ZIO.scoped from APQ wrapper #2214 by @kyri-petrou
• Improved resolve performance in Scala 2 derivation #2239 by @ghostdogpr
• Optimized Parser #2246 by @kyri-petrou
• Optimized usages of Configurator #2250 by @kyri-petrou

Important dependency upgrades

• Updated zio-http to 3.0.0-RC8 #2251 by @kyri-petrou