...The values should be lists of entities, i.e. arrays of value objects with at least an id key. The json-graphql-server accepts queries in GET and POST. Under the hood, it uses the express-graphql module. Please refer to their documentations for details about passing variables, etc. Note that the server is GraphiQL enabled, so you can query your server using a full-featured graphical user interface, providing autosuggest, history, etc. Based on your data, json-graphql-server will generate a schema with one type per entity, as well as 3 query types and 3 mutation types.