acorncache presentation at boston ruby group

vincedevendra@vincedevendra

vincedevendra@gmail.co

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A Customized Approach to HTTP Proxy Caching in Ruby

Vince DeVendra

An HTTP proxy caching gem for Rack-based Ruby applications

Authors: Vince DeVendra and Perry Carbone

github.com/acorncache/acorn-cache

The Goals of HTTP Caching

Decrease page load times and the burden on your server

Two Types of HTTP Caching

Client (Browser) Caching

Internet

Web Server

Cached data stored here

Proxy Caching

Internet

Application Server

Cached data stored here

Proxy Cache Server

Where Does AcornCache Fit In?

Internet

Middleware Stack ExampleIncoming Request AcornCach

e

Middleware 2

Middleware 3..n

Application

Server ResponseReques

t

Outgoing Cached Response

Middleware Stack ExampleIncoming Request AcornCach

e

Middleware 2

Middleware 3..n

Application

Outgoing Server Response

Server ResponseReques

t

Why Did We Build It?

+

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Does it Work?

Does it Work?

Does it Work?

Complexity

Request Time

With Acorn Cache

Without AcornCache

Getting Started

CACHE ALL THE THINGS!

What to Cache With?

Rack::AcornCache

Cached Response

Server Response Request

Initial Object Model

Respecting Cache Control Headers

This should be easy, right?

Pondering the Ethical Implications

of RFC Protocols

Rack::AcornCache

Expanded Object Model

Cache Controller

Cache Maintenance

Cached Response

Cache Control Header

Server Response

Cache Control Header

RequestCache Control Header

Thinking About Thread Safety

Exception Handling

Because SometimesThere Are Unforeseen

Complications

Exception Handling

Allowing for Customization

Implement Page Rules

Pure Ruby FTW

Isn’t This All Against the Rules?

Future Plans

An HTTP proxy caching gem for Rack-based Ruby applications

github.com/acorncache/acorn-cache

Please Contribute!

vincedevendra@vincedevendra

vincedevendra@gmail.com

Vince DeVendra

Looking for Work!