Review of Google I/O

Review of Google I/O The New York Web Standards Meetup Group 24 July 2008 Jeffrey Barke . Senior Developer / Information Architect

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Slideshow Review of Google I/O • The New York Web Standards Meetup Group / 24 July 2008

Slideshow Review of Google I/O • The New York Web Standards Meetup Group / 24 July 2008 Photo by Nancy-. http://flickr.com/photos/zonagirl/2531741509/

Slideshow Review of Google I/O • The New York Web Standards Meetup Group / 24 July 2008 Photo by funcrunch. http://flickr.com/photos/funcrunch/2533475074/

Google App Engine

What is the Google App Engine?
http://code.google.com/appengine/
The Google App Engine is a system for exposing Google’s scalable architecture to your Web applications. Basically, you run your app on Google’s cloud.
Review of Google I/O • The New York Web Standards Meetup Group / 24 July 2008
Features:
Fully-integrated application environment
Python runtime
Free quota of 5 million pageviews per month
Discussion group: http://groups.google.com/group/google-appengine

Why is Google doing this?
To make the cloud more accessible
Competition with Amazon?
Actively courting developers, because Google views the Web as the next platform (mainframe, PC, Web) and recognize that the strength of Microsoft was its relationship to developers
Google uses the app engine itself. Ability to create fast apps.

Why should you use the Google App Engine?
Difficult to create a Web application:
Write app code
Set up Apache Web server, set up MySQL database, config files
Find way to push new version of code when make changes
Find place to run app--ie, get machines. From shared hosting to dv == $$$
Maintain Web site as grows

Design goals
Three design goals:
Easy as possible to create a web app
Easy to scale
Free to get started

How it works
Develop locally
Deploy to Google
Launch app
Consoles to check how app is doing
App can scale to millions of users with no further work by you!

Google App Engine updates
As of Google I/O:
Two new APIs:
Memcache
Image manipulation
Pricing should be done before end of year.
App engine will always be free to get started. 500 MB and 5 million page views.
After that, pay 10-12c per core-hour, 15-18c per GB
Open registration

Getting started with Google App Engine
Sign up for an App Engine account.
Painless if you already have a Google account (and of course you do)
When you attempt to create a project, you will need to verify your account, you will need
to provide your cell number and know who your carrier is.
Download SDK

Software development kit and buttons
http://code.google.com/appengine/downloads.html
The SDK is available for:
Windows
Mac OS X
Linux/other platforms
Requires Python 2.5 to be installed
It includes a web server application that simulates the App Engine environment, including a local version of the datastore, Google Accounts and the ability to fetch URLs and send email directly from your computer using the App Engine APIs.

Google App Engine APIs
The Python Runtime, about the Python environment in which your app runs; CGI, sandbox features, application caching, logging
Datastore API, all about the scalable datastore and how to use it effectively
Uses SQL-like query language called GQL
Images API, the image data manipulation service
Avatar creation
Mail API, sending email from your app
Memcache API, the distributed memory cache
URL Fetch API, accessing other Internet hosts from your app
Users API, integrating your app with Google Accounts
Users do not need to create new account
Your app does not need to manage its own login system

Example apps
PhotoMunchers by Pamela Fox: http://photomunchers.appspot.com/
TweetWheel by Augusto Becciu: http://tweetwheel.appspot.com/
LaterLoop by Greg Hochmuth: http://laterloop.appspot.com/

What is Gears?
http://code.google.com/apis/gears/
An attempt to make the client better. The open web stack (HTML, DOM, CSS, XHR, canvas) is still far inferior to native applications. Gears is an open source plugin that extends the functionality of existing Web browsers by utilizing more of the client’s resources. It exposes a set of JavaScript APIs to developers.
Discussion group: http://groups.google.com/group/gears-users/

What is Gears? cont’d Review of Google I/O • The New York Web Standards Meetup Group / 24 July 2008
Current modules include:
LocalServer:
Cache and serve application resources (HTML, JavaScript, images, etc.) locally
Database:
Store data locally in a fully-searchable relational database
WorkerPool:
Make your web applications more responsive by performing resource-intensive operations asynchronously
Desktop:
Create shortcuts

Browser support
Browsers
Internet Explorer 6.0+
Firefox 1.5+
Internet Explorer Mobile 4.01+
Platforms
Windows XP/Vista
Windows Mobile 5+
Mac OS X 10.4+ and Linux

Gears updates
As of Google I/O:
Debranding Google Gears to just Gears
Working on support for Opera (including mobile version) and Safari
New APIs
Desktop shortcut creation (live)
Desktop notifications (not yet)
File system (not yet)
Blob (pass binary data--not yet)
Geolocation (not yet)

Why should you use Gears?
Can be used to augment apps
Latest version of WordPress: Turbo
MySpace: Search and sort messages
Can be required in custom, corporate content management systems

Demo
Demo: http://themechanism.com/barkode/demos-tutorials/gears/

Google AJAX APIs

What are the Google AJAX APIs?
http://code.google.com/apis/ajax/
Google's AJAX APIs let you implement rich, dynamic web sites entirely in JavaScript and HTML. You can add a map to your site, a dynamic search box or download feeds with just a few lines of JavaScript.
Google Maps API
Google AJAX Search API
Google AJAX Feed API
Google Visualization API
Google AJAX Language API
AJAX Libraries API

AJAX Language API
Translate and detect the language of blocks of text within a webpage using only Javascript.
http://code.google.com/apis/ajaxlanguage/documentation/#Examples

AJAX Libraries API
Content distribution network and loading architecture for the most popular open source JavaScript libraries. By using the Google AJAX API Loader's google.load() method, your application has high speed, globally available access to a growing list of the most popular JavaScript open source libraries including:
jQuery
prototype
script.aculo.us
MooTools
dojo

AJAX Libraries API cont’d
The latest stable versions as they are released.
Once they host a release of a given library, Google is committed to hosting that release indefinitely
Takes the pain out of developing mashups in JavaScript while using a collection of libraries.
Take the pain out of hosting the libraries, correctly setting cache headers, staying up to date with the most recent bug fixes, etc.
<script src="http://www.google.com/jsapi"></script>
<script>
// load jQuery
google.load(‘jquery’, ‘1’);
</script>

AJAX Feed API
Download any public Atom or RSS feed using only JavaScript
Demo:
http://themechanism.com/barkode/demos-tutorials/google-ajax-apis.php

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Review of Google I/O

by Jeffrey Barke on Jul 25, 2008

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