Conventions for setting up a GraphQL Server on Rails - Query a single user

query_type_and_user_resolver.rb

# app/graphql/types/query_type.rb
module Types
  class QueryType < Types::BaseObject
    field :user, Types::UserType, null: false do
      argument :id, ID, required: true
    end

    def user
      resolver = UserResolver.new(context, args)
      resolver.user
    end
  end
end

# app/queries/user_resolver.rb
class UserResolver < ApplicationQuery
  property :id

  def user
    if current_user.admin?
      User.find(id)
    else
      current_user.team.users.find(id)
    end
  end

  def authorized?
    return false if current_user.blank?
    
    current_user.admin? ||
      current_user.id == id ||
      current_user.team.users.where(id: id).exists?
  end
end