Reinventing Identity and Social Graphs with Digits

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REINVENTING IDENTITY AND
SOCIAL GRAPHS WITH DIGITS
#APIsBerlin — April 24, 2015

ROMAIN HUET
Sr. Developer Advocate
@romainhuet

crashes spam identity dropped frames lag
performance threading memory leaks churn  
getting downloads driving installs revenue  
in-app-purchases revenue monetization user feedback
validation distribution support user accounts
testing graphics icons deep links localization
internationalization data storage persistence analytics
content interest graphs stability

IDENTITY
STABILITY
DISTRIBUTION
REVENUE

Individuals Using the Internet, 2005-2014 (ITU)People(Millions)
0
750
1500
2250
3000
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Internet Users

150M
150M
190M
630M
US
EUROPE
ASIA
LATAM
120M
MENA
940M

@romainhuetRomain Huet
Twitter, Inc.
romain@twitter.com
+49 173 0001337+49 173 0001337

@romainhuetRomain Huet
Twitter, Inc.
romain@twitter.com
+49 173 0001337
+49 173 0001337

SMS API SMS Aggregator
¥$

¥$
£

¥$
€£

COST PER MILLION VERIFICATIONS
Brazil $50,000
United Kingdom $33,000
Germany $60,000
Saudi Arabia $20,000
United States $5,000

INITIALIZE FABRIC
import Fabric
import TwitterKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(application: UIApplication!,
didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {
}
}
Fabric.with([Twitter()])
return true

INVOKE DIGITS
import TwitterKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
}
let authenticateButton = DGTAuthenticateButton(authenticationCompletion: {
(session: DGTSession!, error: NSError!) in
// Store the Digits session in your backend.
})
authenticateButton.center = self.view.center
self.view.addSubview(authenticateButton)

DIGITS SESSION
let button = DGTAuthenticateButton { (session, error) in
if session != nil {
}
}
println(session.userID)
// “2834242790”
println(session.authToken)
// “2834242790-5gsoS8ABHybf7SfsWgPXhqmDet843uleJM8hsVa”
println(session.authTokenSecret)
// “xLDdKyEc1SQDrtyobMWZ14dbnL224e4PKxAeGPu4Ibzew”
println(session.phoneNumber)
// “+491730001337”

EXTEND YOUR PROFILES
digitsUserID name proﬁlePic
29384805 … …
23028702 … …
29484500 … …
29390084 … …

USE YOUR OWN BUTTON
import TwitterKit
@IBAction func didTapButton(sender: AnyObject) {
}
}
Digits.sharedInstance().authenticateWithCompletion { (session, error) in
// Inspect the Digits session/error objects.
}

THEME YOUR DIGITS EXPERIENCE
import TwitterKit
@IBAction func didTapButton(sender: AnyObject) {
}
}
let digitsAppearance = DGTAppearance()
digitsAppearance.backgroundColor = UIColor.blackColor()
digitsAppearance.accentColor = UIColor.greenColor()
Digits.sharedInstance().authenticateWithDigitsAppearance(digitsAppearance,
viewController: nil, title: nil) { (session, error) in
// Inspect the Digits session/error objects.
}

ADD DIGITS TO YOUR WEB APP
<!DOCTYPE html>
<html>
<head>
<title>Welcome to Cannonball</title>
<meta charset="UTF-8">
</head>
<body>
<button id="digits-btn">Sign In with Phone</button>
<script id="digits-sdk" src="https://cdn.digits.com/1/sdk.js" async></script>
</body>
</html>

ADD DIGITS TO YOUR WEB APP
<script>
document.getElementById('digits-sdk').onload = function() {
};
</script>
// Set a click event listener on the button.
document.getElementById('digits-btn').addEventListener("click", onLoginButtonClick);
// Implement the login button callback and handle the response.
function onLoginButtonClick() {
Digits.logIn().done(onLogin).fail(onLoginFailure);
}
// Initialize Digits and check if the user is already logged into Digits.
Digits.init({ consumerKey: "o0gzicSS27GgtEJsu7wT442SG" }).done(function() {
Digits.getLoginStatus().done(onLoginStatus);
});

VERIFY A DIGITS TOKEN & RETRIEVE USER INFO
// Parse the OAuth Echo headers.
var oAuthEchoHeaders = loginResponse.oauth_echo_headers;
var verifyData = {
credentials: oAuthEchoHeaders['X-Verify-Credentials-Authorization'],
apiUrl: oAuthEchoHeaders['X-Auth-Service-Provider']
};
// Post this data and from your server, securely request over SSL 
// the user information including the phone number.
$.post('/verify', verifyData).done(function() {
// Update the user interface with user information.
});
<script>
// Validate the authentication and sign the user in.
function onLogin(loginResponse) {
}
</script>

216countries
28languages
216 28

1530531-0k4UA
v5fyP1zVNFvtT
LGSzjnVHuCKc
K3xEZ0MNKX8i

FIND FRIENDS
// Initialize the Find Friends button from the view.
findFriendsButton = (Button) findViewById(R.id.find_your_friends_button);
// Set a listener on the Find Friends button.
findFriendsButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Start uploading the Address Book.
Digits.getInstance().getContactsClient().startContactsUpload();
}
});

FIND FRIENDS
// Retrieve the contact matches.
Digits.getInstance().getContactsClient().lookupContactMatches(null, null,
new ContactsCallback<Contacts>() {
});
@Override
public void success(Result<Contacts> result) {
if (result.data.users != null) {
// Process contacts data.
}
}
@Override
public void failure(TwitterException exception) {
// Show error.
}

As we continue to grow internationally, Digits
is extremely helpful. Many of our customers
prefer to verify their accounts via phone, so
Digits is the easiest solution for them and us.”
“
- Sean Smith, 
Senior Director, Client Engineering, Rdio

Reinventing Identity and Social Graphs with Digits

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