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Building Web Apps with Sinatra

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Introduction

1:16 with Jay McGavren

You've probably heard of Ruby on Rails, which is Ruby's most popular framework for writing web apps. But there's a much simpler alternative, called Sinatra. Rails uses a complex software development pattern called Model-View-Controller to generate HTML pages for users. Sinatra just gives you the request, and lets you generate a response any way you want. It's a great way to understand what web apps are all about, before moving on to the added complexity of Rails.

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    [MUSIC] 0:00
    Hi, I'm Jay and today I'm here to teach you how to write web apps using a Ruby 0:04
    library called Sinatra. 0:08
    Ruby is great for writing apps that run on the terminal but 0:10
    it can run apps that people use from their web browsers too. 0:12
    You've probably heard of Ruby on Rails, which is Ruby's most popular framework for 0:16
    writing web apps, but there's a much simpler alternative called Sinatra. 0:20
    Believe it or not, what you see on the left is code for 0:23
    a complete Sinatra web app and what we see on the right is its output. 0:26
    Rails uses a complex software development pattern called model view controller to 0:32
    generate HTML pages for users. 0:35
    Sinatra just gives you the request and 0:38
    lets you generate a response any way you want. 0:40
    It's a great way to understand what web apps are all about before moving on 0:43
    to the added complexity of Rails. 0:46
    We'll start the course by showing you how to install the Sinatra library and 0:49
    how to create a simple app, then we'll move on to a more complex app, 0:52
    a wiki, that lets users view text pages you've created. 0:56
    We'll set up a form that allows users to create their own wiki pages, and 1:00
    then have our app save those pages to text files. 1:03
    We'll let users edit or delete existing pages and we'll end by using layout files 1:06
    with CSS to make the entire site look more appealing. 1:11
    Ready? 1:14
    Let's get started. 1:15

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