These are some really basic GraphQL examples

You need node to exec the examples.
To run the examples, exec in the terminal node filename
Example: node /initial/index.js

For all the examples, except the ones in initial, exec in the terminal node filename and open http://localhost:3000/graphql

1. Start in /initial/index.js
2. How to work with collections /initial/video-collection.js
3. Check how to use graphql and express express/use-express-graphql.js
4. How to write a schema with js express/js-graphql-schema.js
5. Query videos by specific ID using args in query/query-by-id.js
6. How to define required args with GraphQLNonNull in query/non-null.js
7. Return a collection of videos with GraphQLList in query/resolve-all-videos.js
8. Mutations! Add a new video to the collection mutations/mutation.js
9. Input types, organize args in mutations: mutations/input-type.js