Google Drive and the

Google Drive SDKBuilding Drive apps

Abdelhalim Lagrid

Google Developer Group, Algiers

1

Introduction :

One of Cloud google’s products : lunched in 2012 ..known by Google

Drive API .

What is Google Drive?Yea, some marketing :)

2222

Access Anywhere

Google Drive is everywhere you are -- on the

web, in your home, at the office, and on the go.

So wherever you are, your stuff is just...there.

Ready to go, ready to share.

Install it on:

PC, Mac, Android, iOS

Store your files in a safe place

Things happen. Your phone goes for a swim.

Your laptop takes an infinite snooze.

No matter what happens to your devices, your

files are safely stored in Google Drive.

Powerful search

Google Drive can search keywords

in your files -- even the text in

pictures -- to help you quickly find

what you're looking for.

View anything

When a coworker shares a file with

you, you may not have the supported

software on your computer. With

Google Drive you can open and view

over 35 file types directly in the

browser.

Access to a world of apps!

Google Drive works with the apps

that make you more efficient.

Choose from a growing set of

productivity applications, integrated

right into your Drive.

Google Drive SDKWhy integrate with Google Drive?

Drive SDK opportunity

Extensive Reach Effortless Integration

Put your app in front of millions of

users with billions of files

Get the best of Google Drive's sharing

capabilities, storage capacity and user

identity management so you can focus

on your app

++

Drive SDK features

Drive• Create, Read, List, Manage files through the API

• Search, sharing and revisions

Drive Web UI• Open files and docs with your app directly from Drive

Integrating with Google DriveGetting Started

Steps for integrating your app w/ Drive

Prerequisites:

• Create a project in the Google APIs Console

• Enable the Drive API

• Create OAuth 2.0 credentials

Integration steps:

• Auth with OAuth 2.0 [& OpenID Connect]

• Write code for opening / saving / managing files

OAuth 2.0Introduction

A cool tool...

OAuth 2.0 Playground

Integrating with Google DriveHandling Authorization for Web apps

Python

AuthorizationUsing OAuth 2.0 - Redirecting users to the Grant screen

decorator = OAuth2Decorator(client_id=settings.CLIENT_ID,

client_secret=settings.CLIENT_SECRET,

scope=settings.SCOPE,

user_agent='we-cloud')

class Documents(webapp.RequestHandler):

@decorator.oauth_required

def get(self):

user = users.get_current_user()

if user:

service = build('drive', 'v2', http=decorator.http())

Integrating with Google DriveInteracting with Drive files

Python

Instantiating the Drive service Object

# Here is the Drive service

service = build('drive', 'v2', http=decorator.http())

Python

Creating Folders

folder = {

'title': self.request.get('project[name]'),

'mimeType': 'application/vnd.google-apps.folder'

}

created_folder = service.files().insert(body=folder).execute()

projectcollectionid = created_folder['id']

Python

Creating Files

mimetype = 'application/vnd.google-apps.' + self.request.get('doc[type]')

document = {

'title': self.request.get('doc[name]'),

'mimeType': mimetype

}

if projectcollectionid:

document['parents'] = [{'id': projectcollectionid}]

created_document = service.files().insert(body=document).execute()

resourceid = created_document['id']

Python

Sharing Files

#Share the file with other members

new_permission = {

'value': email,

'type': 'user',

'role': 'writer'

}

service.permissions().insert(fileId=fileid, body=new_permission).execute()

Python

Searching for files

def retrieve_all_files(service,query):

result = []

page_token = None

param = {}

param['q'] = "fullText contains '"+ query + "'"

param['fields'] = "items(id,parents/id)"

while True:

try:

if page_token:

param['pageToken'] = page_token

files = service.files().list(**param).execute()

result.extend(files['items'])

page_token = files.get('nextPageToken')

if not page_token:

break

except errors.HttpError, error:

print 'An error occurred: %s' % error

Integrating with Google DriveAdding the Drive Web-UI Integration

UI Integration - "Create"

UI Integration - "Open with"

Distribution - Chrome Web Store

Steps for adding Drive UI integration

Prerequisites:

• Create a Chrome Web Store listing (Painful !)

• Install the application from the CWS

• Enable and configure the Drive SDK in the Google APIs Console

Integration steps:

• Support OAuth 2.0 server-side flow

• Read action and file ID from URL parameter

JSON

Passing context on open & create

What happens when somebody launches your app from Drive?

{

"action" : "create",

"parentId" : "0ADK06pfg"

}

{

"action" : "open",

"ids" : ["0Bz0bd"]

}

URL

https://www.yourapp.com/drive?code=<authorization code>&state=<JSON>

Create actions

Open actions

Integrating with Google DriveThe Google Picker

UI Integration - Embedded file picker

JS

Embedding the picker

google.setOnLoadCallback(createPicker);

google.load('picker', '1');

var view = new google.picker.View(google.picker.ViewId.DOCS);

view.setMimeTypes("image/png,image/jpeg,image/jpg");

function createPicker() {

picker = new google.picker.PickerBuilder()

.enableFeature(google.picker.Feature.MULTISELECT_ENABLED)

.setAppId(YOUR_APP_ID)

.addView(view)

.setCallback(pickerCallback)

.build();

picker.setVisible(true);

}

JS

Handling picker selections

// A simple callback implementation.

function pickerCallback(data) {

if (data.action == google.picker.Action.PICKED) {

var fileId = data.docs[0].id;

alert('The user selected: ' + fileId);

}

}

Other features

• Resumable upload & download

• Indexable text

• Search!

• Conversions to native Google Documents

• Export of native Google Documents in many formats

• OCR

• Revisions

• List installed apps

• Copy files, Trash files, Touch files

• User Permissions

• Shortcuts

o Auto-generated MIME type

o Contentless

Other Features / tips & tricks

<Thank You!>

http://developers.google.com/drive

h.lagrid@gmail.com