Building an Event-driven Web @ Impact

Building an Event-driven Web

Jeff Lindsay@progrium

Event-driven Programming

Event-driven Programming

The Web as a Platform

The Web as a Platform

is a

Service-oriented Platform

The Web as a Platform

is a

Service-oriented Platform(SOA: Service Oriented Architecture)

S3EC2

MapReduce

CloudFront

SimpleDB

FPS

Simple Email Service

SQS

EBS

SNS

The Mashup

Composition vs

Integration

The Web API (SOA)is designed for composition,

not integration

The Evented Web

Web App

API

Web App

API Events

Web App

API Events

“WebHooks”

When something happens, perform HTTP POST with relevant data to a URL that the user gives you.

PayPal IPN

Twilio WebHooks

The Evented Web Vision

The Evented Web Vision

• Powerful glue code

The Evented Web Vision

• Powerful glue code

• Web plugins

The Evented Web Vision

• Powerful glue code

• Web plugins

• Smaller pieces loosely joined

The Evented Web Vision

• Powerful glue code

• Web plugins

• Smaller pieces loosely joined

• Revolution of workflow

Live Web

Live Web

Evented Web

Live Web

Evented Web

UX driven

Plumbing driven

Live Web

Evented Web

Live Web

Evented Web Events

Event Handlers

Event Handlers

CallbacksHandlers(Hooks)

Event Handlers

CallbacksHandlers(Hooks)

WebHooks:HTTP Callbacks

Analogy!

WebHooks Evented Web

Analogy!

WebHooks Evented Web

AJAX Web 2.0

Analogy!

WebHooks Evented Web

AJAX Web 2.0

Mechanism Big Picture

Powerful glue code

Demo + Code

Web plugins

Twilio WebHooks

Smaller pieces loosely joined

Program

STDIN STDOUT

STDERR

Program

cat

xargs

wc

mailecho

grep

wget

cat

xargs

wc

mailecho

grep

wget

grepcat

xargs

wc

mailecho

wget

mailgrepcat

xargs

wc

echowget

Revolution of workflow

Web of Things

“API for everything...

Web of Things

“API for everything......with events!”

Home Automation

Home Automation

Life Automation

Life Automation

The Evented Web

The Evented Web Vision

• Powerful glue code

• Web plugins

• Smaller pieces loosely joined

• Revolution of workflow

Live Web

Evented Web

Action Items!

Action Items!• Standardization

Action Items!• Standardization

• PubSubHubbub

Action Items!• Standardization

• PubSubHubbub• HTTP Futures

Action Items!• Standardization

• PubSubHubbub• HTTP Futures

• Infrastructure

Action Items!• Standardization

• PubSubHubbub• HTTP Futures

• Infrastructure• Handler Scripting

Action Items!• Standardization

• PubSubHubbub• HTTP Futures

• Infrastructure• Handler Scripting• Tools

Action Items!• Standardization

• PubSubHubbub• HTTP Futures

• Infrastructure• Handler Scripting• Tools

• Adoption + Awareness

Thanks!

Jeff Lindsay@progrium

Evented Web Summit