app/serializers/api/v1/user_serializer.rb
module API
module V1
class UserSerializer < ActiveModel::Serializer
type :user
attributes :id, :name, :description, :created_at
attributes :steam_32, :steam_64, :steam_id3
attribute(:steam_64_str) { object.steam_64.to_s } # For dumb json implementations
attribute(:profile_url) { object.avatar.thumb.url }
has_many :teams, serializer: API::V1::TeamSerializer
has_many :rosters, serializer: API::V1::Leagues::RosterSerializer
end
end
end