Error handling in GraphQL API written in Scala

This is an example of a GraphQL server written with Play framework and Sangria that shows how to implement error handling in GraphQL API.

How to start

Run the application:

sbt run

After launch, the application will be accessible on localhost:9000. The application uses in-memory H2 database that is initialized by Play evolutions. When you start the application, you will see an error page with a suggestion to run the SQL script. Click Apply this script now!.

Sources

https://graphql.org/

https://www.playframework.com/documentation/2.6.x/ScalaHome

https://sangria-graphql.org/learn/

https://facebook.github.io/graphql/#sec-Errors