Latest Free Screencasts

In a previous episode, Using ActiveRecord with Sinatra, we showed you how to use ActiveRecord and Sinatra to build a URL shortener. We showed how to get ActiveRecord up and running in your Sinatra application, and now in this screencast, we'll show you the various ways on how to configure...

In this screencast we'll create a URL shortener in Ruby with Sinatra. We're going to show you how to integrate ActiveRecord with a Sinatra application. You'll need this regular expression to follow along: /^\b((?:https?:\/\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))$/ What you'll learn How to integrate ActiveRecord in to Sinatra with sinatra-activerecord How to build a...

To mark AJAX's birthday on 18th March, we've put together a screencast to show you how to create your very own AJAX-updating countdown website for the big day. We're using Haml, Sinatra and jQuery to do this and recommend you look at our introduction videos if you're not familiar with...

Welcome to the Introduction to Sinatra screencast. You may also be interested in our Introduction to Haml screencast, as we will be using some Haml in this video. You might be surprised to find out that if you search on Google for “Sinatra”, the first result is not Ol’ Blue...

Sinatra has a really nice DSL. You can fake the basics of the DSL with some simple Rack middleware created by metaprogramming. If you like the screencasts, please give $5 to help me get to RubyConf Download (64.2 MB) Download iPhone & iPod (35.6 MB)

The router in Rails 3 is fully compatible with Rack. Learn how to embed Sinatra into an app, handle redirects, and improve on Rails Metal.

This is the second part of the series on MongoDB. In this screencast, we create a small Sinatra app called YASI that accesses the data using MongoDB. Get the code at http://blog.rubyhead.com/files/yasi.zip

In this screencast, you will see the basic CRUD operation using MongoDB shell. This is the first installment of a series on MongoDB.

Rack middleware is a way to filter a request and response coming into your application. In this episode I show how to modify the response body using middleware.