create function

create_function.rb

# frozen_string_literal: true

class CreateFunction < GraphQL::Function
  attr_reader :type

  def initialize(model)
    @model = model
    @type = ModelType.new(model) # creates a graphql type from a model
  end

  def arguments
    fields = @type.all_fields.select do |field|
      # some logic for which fields we want to expose
    end
    args = fields.map { |field| [field.name, field.type] }
    args.map { |a| GraphQL::Argument.from_dsl(*a) }.mash { |a| [a.name, a] }
  end

  def call(_obj, args, ctx)
    # parse and check the args
    # check ctx for some authorization stuff
    @model.create(args)
  end
end