While there are many articles on setting up a GraphQL server, Jack Scott has published one with all of that useful information compiled into a single detailed guide on setting up a production server. This comprehensive article covers topics from creating a basic GraphQL structure and making queries and mutations, to connecting a database and adding authentication and authorisation. This is a great article for people seeking a full introduction to GraphQL servers and is packed with helpful links to learn more.
Github has just released a fuller Issue API that uses GraphQL. You can see all of the available new objects in their docs and they are seeking feedback on the interactions. Let them know what you think!