Tutorials on GraphQL

Reading the tutorial to build a nodeJS + express GraphQL server
Currently in Chapter 3: A Simple Query

1. https://www.howtographql.com/graphql-js/0-introduction/
2. https://www.howtographql.com/graphql-js/1-getting-started/
3. https://www.howtographql.com/graphql-js/2-a-simple-query/