libraryDependencies += "org.sangria-graphql" %% "sangria-relay" % "1.4.2"
More info and the documentation can be found in the project home page:
I would also would recommend you to check out http://try-relay.sangria-graphql.org. It is an example of a GraphQL server written with the Play framework and sangria-relay. It also serves as a playground, where you can interactively execute GraphQL queries and play with some examples.
If you would like to discuss something about sangria-relay or have some questions, please feel free to join our mailing list:
sangria-relay is licensed under Apache License, Version 2.0.