[{"_1":2,"_42":-5,"_43":-5},"loaderData",{"_3":4,"_10":11,"_40":-5,"_41":-5},"root",{"_5":-5,"_6":-5,"_7":-5,"_8":9},"user","shoppingCartId","toast","locale","en","routes/_store+/_readers+/email_author.$slug/route",{"_12":13,"_39":-5},"book",{"_14":15,"_16":17,"_18":19,"_20":21,"_22":23,"_24":25},"id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvMzU2NzU","title","Build Your Own Sinatra","state","published","contactAuthorMethod","email","aboutText","

A book about Rack, Sinatra, Rails, and all the magical things in-between. Master the Rack spec, learn how to write plain Rack apps without a framework, learn how to write middleware, how to build a router, and more!

This is a book about the heart of Ruby frameworks, the Rack Webserver interface. It teaches you everything you need to know to build plain Ruby apps without any framework.

You should read it if

You have ever wanted to learn how ruby frameworks work
Want to build your own framework
Want to modify and contribute to your favorite framework
You are curious about stuff like env(), call(), and use()
Have ever been perplexed at anything Sinatra or Rails did

What you will learn

The Rack Server Interface
How to construct a valid Rack application
The APIs of Rack::Request and Rack::Response
How the internals of Sinatra and other Ruby frameworks work
How to write a router in Ruby and how routers compile route strings into RegEx
How to write your own plain Rack applications without any framework
How to compose Rack applications together and design a framework's API
and more!

What you will build

1. Plain Ruby apps on Rack

You will build rack middleware and raw rack apps right on the metal. You will build a MVC app on top of Rack without any framework. No Rails, no Sinatra, no Cuba, no router, no framework of any kind just pure Rack.

2. A custom Ruby router

You will get to build your own router complete with matcher and splats support!

3. A Ruby Microframework

You will be walked through how to build a microframework called Eldr. Eldr is a simple, flexible, and clear framework without any magic.

","authors",[26],{"_14":27,"_28":29,"_5":30},"Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6UHJvZHVjdEF1dGhvci8zNzMyMA","name","K-2052",{"_31":32},"avatar",{"_33":34,"_35":36,"_37":38},"url","https://d308did4coypzi.cloudfront.net/avatars/140086/medium/avatar.jpg?1543480514","styleName","medium","exists",true,"currentUser","routes/_store+/_layout","routes/_store+/_readers+/_layout","actionData","errors"]

Email the author