gistfile1.rb

class UsersController < ApplicationController::Base
  respond_to :html, :xml, :json

  def show
    respond_with(@user = User.find(params[:id]))
  end

  def index
    respond_with(@users = User.all)
  end

  def create
    @user = User.create(params[:user])
    respond_with(@user, :location => users_url)
  end
end