AWS Cloud Kata 2014 | Jakarta - 2-2 Mobile

AWS Cloud Kata for Start-Ups and Developers
Jakarta
Mobile on AWS
Markku Lepistö
Principal Technology Evangelist
@markkulepisto

How to build a mobile app today?

Authenticate users
Authorize access
Analyze User Behavior
Store and share media
Synchronize data
Deliver media
Store shared data
Stream real-time dataTrack Retention
Send push notifications
Manage users and
identity providers
Securely access
cloud resources
Sync user prefs
across devices
Track active users,
engagement
Manage funnels,
Campaign performances
Store user-generated photos
Media and share them
Automatically detect mobile devices
Deliver content quickly globally
Bring users back to your app by sending
messages reliably
Store and query fast NoSQL data
across users and devices
Collect real-time clickstream logs
and take actions quickly
Your
Mobile
App

Amazon Cognito Amazon Mobile Analytics Amazon SNS Mobile Push
Kinesis Recorder DynamoDB Mapper S3 Transfer Mgr SQS Client SES Client
AWS Global Infrastructure (Regions, Availability Zones, Edge Locations)
Core Building Block
Services
Mobile Optimized
Connectors
Mobile Optimized
Services
Your Mobile App, Game or Device App
AWS Mobile SDK, API Endpoints, Management Console
Compute Storage Networking Analytics Databases
Integrated SDK
Introducing AWS Mobile Services
AWS Lambda
Lambda
Functions
λ λ
λ
λ

User identity &
data synchronization
service
Store any NoSQL
data and also map
mobile OS specific
objects to
DynamoDB tables
Fast cross-platform
Analytics & reporting
Service
Powerful Cross-platform
Push notification service
Recorder that can
handle intermittent
network connection
Easily upload,
download to S3 and
also pause,
resume, and cancel
these operations
Send email
reliably from
device
Access
distributed
buffering and
queuing service
Kinesis Recorder DynamoDB Mapper S3 Transfer Mgr SQS Client SES ClientAWS Lambda
Lambda
Functions
λ λ
λ
λ
Not limited to Mobile.
Run stateless cloud
Functions without any
Backend servers to
Manage or scale

Fully Integrated AWS Mobile SDK
•  Common authentication mechanism across all
services
•  Automatically handle intermittent network
connections
•  Cross-platform Support: Android, iOS, Fire OS
•  Native SDKs optimized for Mobile OS, for
example, uses the local offline caching
architecture
•  Reduced memory footprint; Pick and choose
the service jars you need

Authenticate users
Authorize access
Synchronize data
AWS Mobile SDK
Amazon Mobile
Analytics
Deliver media
Amazon Cognito
(Sync)
AWS Identity and
Access Management
Amazon Cognito
(Identity Broker)
Amazon S3
Transfer Manager
Amazon CloudFront
(Device Detection)
Store shared data
Amazon DynamoDB
(Object Mapper)
Stream real-time data
Amazon Kinesis
(Recorder)
Track Retention
Amazon Mobile
Analytics
Amazon SNS
Mobile Push
Your
Mobile
App

Authenticate users: Amazon Cognito

Introducing Amazon Cognito
Cross-device and
Cross-platform Sync
Securely access AWS
services from Mobile
device
Simplifies Identity and
Access Management
Implement security best
practices
“Your App data is secure, available offline, and kept in sync between devices”
Asynchronously sync
user data across
devices and platforms
Manage unique identity
for your user across
identity providers
Guest

Identity
Providers
Unique
IdentitiesJoe Anna Bob
Any Device
Any Platform
Any AWS
Service
Helps implement security best
practices
Securely access any AWS Service from mobile
device. It simplifies the interaction with AWS
Identity and Access Management
Support Multiple Login Providers
Easily integrate with major login providers for
authentication.
Unique Users vs. Devices
Manage unique identities. Automatically
recognize unique user across devices and
platforms.
Amazon Cognito Identity
Mobile
Analytics
S3
DynamoDB
Kinesis

Amazon Cognito for Unauthenticated Identities
Unique Identifier for Your “Things”
“Headless” connected devices can also
securely access cloud services.
Save Data to the Cloud
Save app and device data to the cloud and
merge them after login
Guest User Access
Securely access AWS resources and leverage
app features without the need to create an
account or logging in
Visitor
Preferences
Cognito
Store
Guest
EC2
S3
DynamoDB
Kinesis

Getting Started with Cognito in 3 steps
Sign up for AWS Account and login to AWS Management Console
Download and integrate the Mobile SDK and store and
sync user data in a dataset
Create identitypool for authenticated and
unauthenticated users in the AWS Console

Amazon Cognito Security Architecture
User ID
(Temp
Credentials)
DynamoDB
End Users
Developer
App w/SDK
Access
to AWS
Services
Cognito Identity
Broker
Login OAUTH/OpenID
Access Token
Cognito ID,
Temp
Credentials
S3
Mobile Analytics
Cognito Sync
Store
AWS
Management
Console
Access Token
Pool ID
Role ARNs

Your
own
Username

And
Password

Your own user authentication system
Several apps prefer to have their own username
and password instead of public identity providers
for authentication.
Manage mappings easily
Cognito manages the mappings across login
systems (public or private) using a unique
Cognito ID
Easily integrate with existing systems
Implement GetOpenIdTokeForDeveloperIdentity()
using our server-side SDKs like Java, Python,
Ruby etc.

Cognito ID
(Temp
Credentials)
DynamoDB
End Users
Developer
App with
AWS Mobile
SDK
Access
to AWS
Services
Cognito Identity
Broker
Get OpenID Token
Username
password
Cognito ID,
Temp Credentials
S3
Mobile Analytics
Cognito Sync
Store
AWS
Management
Console
OIDC Token
Pool ID
Role ARNs
User Authentication
System
(Running on AWS or not)
OIDC Token
OIDC Token

Authorize access: Amazon Cognito + AWS IAM + Fine-
grained access control

Amazon Cognito (Identity Broker)
Identitypool
Identity
Providers
Pool of identities that
share the same trust policy
Access
Policy
Access to
AWS
Services
identitypool
Unauthenticated
Identities
authenticated
identities
AWS IAM Roles
AWS
Account
Web Identity
Federation
S3
DynamoDB
Get Delete Put

Access Policy for the IAM Role
{!
"Effect":"Allow",!
"Action":["s3:*"],!
"Resource":"*"!
}!
!
{!
"Effect": ”Deny",!
"Action": ["dynamodb:*"],!
"Resource": "*"!
}!
!
{!
"Effect": "Allow",!
"Action": [”cognito-sync:*"],!
"Resource": "*"!
}!
Allow
Actions:
All S3, Sync store
Operations
Resource:
All resources within
these services
Deny
Actions:
All DDB Operations
Resource:
All resources

Access Policy Restriction
{!
"Effect":"Allow",!
"Action":["s3:PutObject","s3:GetObject","s3:DeleteObject",!
!"s3:ListMultipartUploadParts","s3:AbortMultipartUpload"],!
"Resource":"arn:aws:s3:::BUCKET_NAME/*"!
} !
{!
"Effect":"Allow",!
"Action":["s3:ListBucket","s3:ListBucketMultipartUploads"],!
"Resource":"arn:aws:s3:::BUCKET_NAME"!
}!
{!
"Effect": "Allow",!
"Action": ["dynamodb:GetItem", "dynamodb:Query", "dynamodb:PutItem"],!
"Resource" : [ "arn:aws:dynamodb:REGION:123456789:table/TABLE_NAME", !
! "arn:aws:dynamodb:REGION:123456789:table/TABLE_NAME/
! !index/INDEX_NAME" ]!
}!
!
Allow
Actions:
Certain operations
Resource:
One bucket, table ..

Access Policy Restriction (Policy Variables)
Allow
Actions:
All sync operations
Resource:
Only to that identity
{!
"Effect": "Allow”,!
"Action": ["s3:GetObject”,"s3:PutObject”],!
"Resource": ["arn:aws:s3:::!
!myBucket/amazon/snakegame/!
!${cognito-identity.amazonaws.com:sub}"]!
}!
{!
"Effect":"Allow",!
"Action":"cognito-sync:*", !
"Resource":["arn:aws:cognito-sync:us-east-1:
!123456789012:identitypool/!
!${cognito-identity.amazonaws.com:aud}/identity/!
!${cognito-identity.amazonaws.com:sub}/*"] !
}!
Allow
Actions:
S3 Get/Put operations
Resource:
Only to a specific part
of bucket to that identity

Synchronize data across devices : Amazon Cognito (Sync)

What have customers told us about “Synchronized
Profile”
People have multiple devices and want to transition between devices.
Implementing a user profile that syncs across devices, OS, apps is hard.
It not only has to work when offline, but easy to integrate with existing apps.

User Data
Storage and
Sync
Any Platform
iOS/Android/FireOS
Store App Data, Preferences and State
Save app and device data to the cloud and merge
them after login
Cross-device Cross-OS Sync
Sync user data and preferences across devices
with one line of code
Work Offline
Data always stored in local SQLite DB first.
Works seamlessly when intermittent or no
connectivity
k/v data
Identity pool

Users begin their life as guests

Later on they register an account
•  The transition should be
seamless

Multiple accounts can be linked
•  You should have a consistent
identifier

Amazon Cognito Sync
Offline: The client SDK manages a local SQLite data
store to allow the app to work even when connectivity is
not available.
Fast: The methods to read and write data only interact
with the local SQLite database.
Intelligent Sync: The sync method compares the local
version of the data to the cloud sync store, pushes up
deltas and pulls down new changes.
Flexible Conflict resolution: The sync method first
reads the changes then writes its local changes to the
cloud sync store By default Cognito assumes that the
last write wins. Developers can override and
implement their own conflict resolution programmatically
Local SQLite Cache

Amazon Cognito Sync Data Model
AWS
Account
Identitypool
Dataset
Pool of identities that
share the same trust policy
Identity
Identity
Identity
Dataset
Dataset
identitypool
Unique identifier across
devices, get cached on local devices
as well as saved in the cloud
1:n
1:n
1:n
Dataset synchronized across
devices by simply calling dataset.synchronize()
method
DatasetDataset
Key/Value
1:n
Key-value and sync count

Amazon Cognito Sync Data Model - Example
AWS
Account
Identitypool
Dataset
Identity
Identity
Identity
Dataset
Dataset
identitypool
1:n
1:n
1:n
User
preferences
Developer has two apps: a game and a productivity app
Game
state
Identitypool1
Productivity
App
Game
App
DatasetDataset
Key/Value
1:n

Integrating Cognito Sync functionality is dead simple
Initialize the CredentialsProvider and CognitoClient
Call synchronize on the dataset
Create or open Dataset and Add Key Values
provider = new CognitoCredentialsProvider(context, AWS_ACCOUNT_ID, ! ! !
! ! !COGNITO_POOL_ID, COGNITO_ROLE_UNAUTH, COGNITO_ROLE_AUTH);!
!
cognito = new DefaultCognitoSyncClient(context, COGNITO_POOL_ID, provider);!
dataset.synchronize(new SyncCallback(){..});!
!
cognito.openOrCreateDataset(datasetName);!
dataset.put(key, value);!

Integrating Cognito Sync functionality is dead simple
Initialize the AWSCognitoSyncClient
Call synchronize on the dataset
Create or open Dataset and Add Key Values
DataSet *dataset = [syncClient openOrCreateDataSet:@"myDataSet"];
NSString *value = [dataset readStringForKey:@"myKey"];
[dataset putString:@"my value" forKey:@"myKey"];

AWSCognitoSyncClient *syncClient = [[AWSCognitoSyncClient alloc]
initWithConfiguration: configuration];

[dataset synchronize];
iOS

Unique identity across web and mobile
Uniquely identify your user on your website and mobile
devices
Sync your profiles across web and
mobile
Sync user data and preferences across web and
devices with one line of code
JS/HTML5 Mobile Applications
Data always stored in local SQLite DB first.
Works seamlessly when intermittent or no
connectivity

Deliver media
Store shared data
Stream real-time dataTrack Retention
Track active users,
engagement
Manage funnels,
Campaign performances
messages reliably
Your
Mobile
App
Authenticate users
Authorize access
Synchronize data
Amazon Cognito
(Sync)
AWS Identity and
Access Management
Amazon Cognito
(Identity Broker)

Analyze User Behavior: Amazon Mobile Analytics

What Customers Told Us About “Mobile Analytics”
Developers deeply value user analytics and consider it an integral part
of their app development process. They want to monitor their most
important metrics in a timely manner, and take action quickly. They
would like to own their mobile data, just like they do with any other
AWS service.

Amazon Mobile Analytics
Scalable and Generous
Free Tier
Focus on metrics that
matter. Usage reports
available within 60
minutes of receiving data
from an app
Fast
Scale to billions of
events per day from
millions of users.
Own Your Data
“Easily collect, visualize and understand your app usage data at scale”
Data collected are not
shared, aggregated, or
reused

Getting Started with Mobile Analytics in 3 steps
Sign up for AWS Account and create or use existing Cognito ID in
the AWS Management Console
View engagement and session activity reports in the
AWS Management console within minutes
Download and integrate the Mobile SDK with one line of
code (Android/FireOS, iOS)

Key Business Metrics
(with one line of code)
1.  Monthly Active Users
(MAU)
2.  Daily Active Users
(DAU)
3.  New Users,
4.  Daily Sessions,
5.  Sticky Factor,
6.  1-Day Retention,
7.  Avg. Revenue per DAU,
8.  Daily Paying Users,
9.  Avg. Paying DAU

Track Retention
User retention is a key
indicator to judge the
outcome of a marketing
campaign, new feature
introduction, UX changes,
app updates, etc.
Mobile Analytics provide four
charts to track daily or
weekly rate of returning
users, after first use of the
app

Get behavioral insights into app specific
actions that your users take
Reports provide a view of how often custom
events occur. You can add further context
with Attributes and Metrics, to each custom
event
Examples
Track the number of
Likes/Shares, per
article, in a news app
Understand player
abort rates per
level, in a game
Number of songs
played, per user
session, in a music
app
In-app item popularity
in a shopping app
Track Custom Events

Integrating Mobile Analytics is super simple
Initialize the AmazonMobileAnalyticsClient. That’s it! Get Session
Activity in the AWS Management Console.
For Custom Events activity reports, add events.
Add OnResume() and OnPause()
analytics = new AmazonMobileAnalytics(provider, context, "SnakeGameAWS”);!
EventClient eventClient = analytics.getEventClient();!
MobileAnalyticsEvent visitEvent = eventClient.createEvent("speedSet");!
eventClient.recordEvent(visitEvent);!
analytics.getSessionClient().resumeSession();!
analytics.getSessionClient().pauseSession();!
Analytics.getEventClient().submitEvents();!

Integrating Mobile Analytics is super simple
Initialize the AmazonMobileAnalytics object. That’s it! Get Session
Activity in the AWS Management Console.
Submit the event. If we don't call submitEvents, events
will automatically be submitted at periodic intervals.
Create add Custom Events
[eventClient submitEvents];!
id<AWSMobileAnalyticsEventClient> eventClient =
analytics.eventClient;!
id<AWSMobileAnalyticsEvent> level1Event = [eventClient
createEventWithEventType:@"level1Complete"];!
AWSMobileAnalytics* analytics = [AWSMobileAnalytics !
!defaultAWSMobileAnalyticsWithIdentifier:@"someuniqueid"];!
iOS

Deliver media
Store shared data
messages reliably
Your
Mobile
App
Authenticate users
Authorize access
Synchronize data
Amazon Mobile
Analytics
Amazon Cognito
(Sync)
AWS Identity and
Access Management
Amazon Cognito
(Identity Broker)
Track Retention
Amazon Mobile
Analytics

Store and share media: Amazon S3

Amazon S3 Connector: Transfer Manager
S3 Connector
Multipart upload media (photos, videos, audio)
Fault tolerant download (e.g. assets)
No backend required
Automatic retries
Pause, resume, cancel functions
Optimized for native OS

// Creating the transfer manager !
self.transferManager = [S3TransferManager new]; !
self.transferManager.s3 = s3client; !
!
// Upload image !
[self.transferManager uploadFile:fileName bucket:bucketName key:objectName]; !
!
// Download image !
[self.transferManager downloadFile:fileName bucket:bucketName key:objectName]; !
!
// Pause, Resume, Cancel !
[self.transferManager pauseAllTransfers]; !
[self.transferManager resumeAllTransfers]; !
[self.transferManager cancelAllTransfers]; !
Amazon S3 Connector: Transfer Manager

Store shared data
messages reliably
Your
Mobile
App
Authenticate users
Authorize access
Synchronize data
Amazon Mobile
Analytics
Amazon Cognito
(Sync)
AWS Identity and
Access Management
Amazon Cognito
(Identity Broker)
Track Retention
Amazon Mobile
Analytics
Deliver media
Amazon S3
Transfer Manager
Amazon CloudFront
(Device Detection)

Auto Scaling
(Never under or over
provision)
Focus on business logic,
not infrastructure. Upload
your code; AWS Lambda
handles everything else
Zero Administration
Lambda scales the
infrastructure as needed
to match the event rate
and pay as you go
Bring Your Own Code
“Run stateless functions in the cloud and scale without any servers to manage”
Starting with Javacript but
later bring your own code,
Create threads and
processes, run batch scripts
or other executables,

Endless possibilities - not just for mobile
Data triggers Stream processing Indexing &
synchronization
Server-free
back-end
IoT

Send Push Notifications: Amazon SNS Mobile Push

What Customers Told Us About “Push Notifications”
Sending large-scale push notifications, cross-platform is still hard.
Developers want to be able to reach their customers globally and
across all devices.

Each platform works differently, and push gets even more
complex as you scale to support millions of devices.
Cloud App
Platform Services Mobile Apps

Amazon SNS
Cross-platform
Mobile Push
Internet
Apple APNS
Google GCM
Amazon ADM
Windows WNS and
MPNS
Baidu CP
Industry’s First!
New!
With Amazon SNS, developers can send push notiﬁcations on multiple platforms
and reach mobile users around the world
New features:
Message Expiry Time
Message Attributes
Amazon SNS Mobile Push
Android Phones and Tablets
Apple iPhones and iPads
Kindle Fire Devices
Android Phones and Tablets in China
iOS
Windows Desktop and Windows Phone
Devices

Developers Love Cross-Platform Features of SNS
Fast reliable
notification for every
Email received is
powered by SNS
Customers love
high scale and
Reliability of SNS
High-profile Startups
trust SNS for their
high-profile launches
Secret.ly
Advanced targeted
notifications
bring players back into
the game
Mature games increase
retention using SNS
Launched its Android
App with SNS, no
provisioning required
Jetpack Joyride
Fruit ninja

Key Takeaways
Kinesis Connector DynamoDB Connector S3 Connector SQS ConnectorSES Connector
AWS Global Infrastructure (11 Regions, Availability Zones, 52 Edge Locations)
Core Building Block
Services
Mobile Optimized
Connectors
Mobile Optimized
Services
Integrated SDK

Key Takeaways
Kinesis Connector DynamoDB Connector S3 Connector SQS ConnectorSES Connector
AWS Global Infrastructure (10 Regions, Availability Zones, 51 Edge
Locations)
Core Building Block
Services
Mobile Optimized
Connectors
Mobile Optimized
Services
Integrated SDK
Cross Platform
and Optimized
for Mobile
Flexibility
And Freedom
of Choice
Fully integrated
and easy to get
started

Amazon Cognito Amazon Mobile
Analytics
Amazon SNS
Mobile Push
Free Tier:
1 Million push messages
every month
Free Tier (for first 12
months):
1 Million syncs/month +
10GB of storage for
Amazon Cognito
Free Tier:
100 Million events every
month
Get Started for Free!

Demo
Serverless App – JavaScript, S3 & Lambda
SNS Mobile Push - iOS

AWS Javascript SDK
for the browser
Amazon DynamoDB
Blog Database
directly from
web client
Amazon S3
Asset storage &
Web server
AWS Lambda
Create Thumbnail
function on S3 Put events
Demo 1 – Serverless Dynamic Blog

AWS Cloud Kata for Start-Ups and Developers
台北
6月25日

AWS Cloud Kata 2014 | Jakarta - 2-2 Mobile

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