GraphQL!Schema.fs

// static var Query = Define.Object<Root>(...)
let Query =
    Define.Object<Root>
        (name = "Query",
         fields = [ Define.AsyncField (
                        name     = "grupoj",
                        type     = ListOf GrupoType,
                        resolver = asyncGetRecenzoj) ])

// static var Mutation = Define.Object<Root>(...)
let Mutation =
    Define.Object<Root>
        (name = "Mutation",
         fields = [ Define.AsyncField (
                        name = "setComment",
                        type = RecenzoType,
                        description = "Set comment into review",
                        inputs = [ Define.Input ("command", SetCommentInputType) ],
                        resolver = asyncSetComment) ])
                  
let schema: ISchema<Root> = upcast Schema(Query, Mutation, config = schemaConfig)
// static ISchema<Root> schema = new Schema(Query, Mutation, config: schemaConfig);