Building Cloud-Powered Mobile Apps

Building Cloud-powered Mobile Apps
Danilo Poccia, Technical Evangelist
October 15th, 2014

Enterprise
Applications
Virtual
Desktops
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Platform
Services
Database
s
Relational
No SQL
Caching
Analytics
Hadoop
Real-time
Data
Warehouse
Data
Workflows
App Services
Queuing
Orchestration
App Streaming
Transcoding
Email
Search
Deployment & Management
Containers
Dev/ops Tools
Resource Templates
Usage Tracking
Monitoring and Logs
Mobile Services
Identity
Sync
Mobile Analytics
Notifications
Foundation
Services
Compute
(VMs, Auto-scaling
and Load Balancing)
Storage
(Object, Block
and Archive)
Security &
Access Control
Networking
Infrastructure Regions Availability Zones CDN and Points of Presence
AWS Overview

Regions
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(Tokyo)
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(Singapore)
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Paulo)
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(Sydney)
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AWS Global Infrastructure

Availability Zones

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AWS Console
Self-service
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Pay as you go
API-based
AWS Console
SDKs
CLI Tools

How to build a mobile app today?

Authenticate users
Manage users and
identity providers
Authorize access
Securely access
cloud resources
Sync user prefs
across devices
Analyze User Behavior
Store and share media
Synchronize data
Deliver media
Send push notifications
Store shared data
Track active users,
engagement
Track Retention Stream real-time data
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

Introducing AWS Mobile Services
Amazon Cognito Amazon Mobile Analytics Amazon SNS Mobile Push
Kinesis Connector DynamoDB Connector S3 Connector SQS ConnectorSES Connector
AWS Global Infrastructure (10 Regions, Availability Zones, 51 Edge Locations)
Mobile Optimized
Services
Mobile Optimized
Connectors
Core Building Block
Services
Your Mobile App, Game or Device App
AWS Mobile SDK, API Endpoints, Management Console
Compute Storage Networking Analytics Databases
Integrated SDK

Cross-platform, Optimized for Mobile
User identity &
data synchronization
service
Fast cross-platform
Analytics & reporting
Service
Store any NoSQL
data and also map
mobile OS specific
objects to
DynamoDB tables
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

Fully Integrated AWS Mobile SDK
• Common authentication mechanism across
all services
• Automatically handle intermittent network
connections
• Cross-platform Support:
Android, iOS, Fire OS, Xamarin
• 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
Amazon Cognito
(Identity Broker)
Authorize access
AWS Identity and
Access Management
Synchronize data
AWS Mobile SDK
Amazon Mobile
Analytics
Deliver media
Amazon Cognito
(Sync)
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

Amazon Cognito
“Your App data is secure, available offline, and kept in sync between devices”
Simplifies Identity and
Access Management
Securely access all
AWS services from
Mobile device
Cross-device and
Cross-platform Sync
Implement security best
practices
Synchronize user’s data
across devices and
platforms
Guest
Developer
Authenticated
Identities
Manage users as
unique identities across
identity providers

Unique
Joe Anna Bob Identities
Identity
Providers
Any Device
Any Platform
Any AWS
Service
Amazon Cognito Identity
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.
Helps implement security best
practices
Securely access any AWS Service from mobile
device. It simplifies the interaction with AWS
Identity and Access Management
Mobile
Analytics
Developer
Authenticated
Identities
S3 DynamoDB Kinesis

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

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

Building Cloud-Powered Mobile Apps

Amazon Cognito Security
Safeguard AWS Credentials
No need to embed credentials in the app
anymore. Get least-privileged temporary
credentials.
Helps implement security best practices
Securely access any AWS Service. It simplifies
the interaction with Security Token Service and
removes the need of Token Vending Machine
Set granular access permissions on AWS
resources
Get fine-grained access control to cloud
resources.
EC2 S3 DynamoDB Kinesis

Amazon Cognito Security Architecture
User ID
(Temp
Credentials)
DynamoDB
End Users
Developer
App w/SDK
Developer
Authenticated
Identities
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

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
authenticated
identities
Unauthenticated
Identities
AWS IAM Roles
AWS
Account
Web Identity
Federation
S3
DynamoDB
Get Delete Put
Developer
Authenticated
Identities

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
{
"Effect":"Allow”,
"Action”
["s3:PutObject","s3:GetObject","s3:DeleteObject”,”s3:
ListMultipartUploadParts","s3:AbortMultipartUpload"],
"Resource":"arn:aws:s3:::BUCKET_NAME/Bob/*"
}
{
"Effect":"Allow",
"Action":"s3:ListBucket",
"Resource":"arn:aws:s3:::BUCKET_NAME",
"Condition":{"StringLike":{"s3:prefix":”Bob/"}}
}
{
"Effect":"Allow",
"Action":["s3:ListBucketMultipartUploads"],
"Resource":"arn:aws:s3:::BUCKET_NAME"
}
Allow
Actions:
Certain operations
Resource:
Within a bucket with
specific prefix (user)

Access Policy Restriction (Policy Variables)
Allow
Actions:
All sync operations
Resource:
Only to that identity
{
"Effect":"Allow",
"Action":"cognito-sync:*",
"Resource":["arn:aws:cognito-sync:us-east-1:
{
"Effect": "Allow”,
"Action": ["s3:GetObject”,"s3:PutObject”],
"Resource": ["arn:aws:s3:::
myBucket/amazon/snakegame/
${cognito-identity.amazonaws.com:sub}"]
}
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.

Amazon Cognito Sync
User Data
Storage and
Sync
Any Platform
Identity pool
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

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
identitypool
Dataset
Pool of identities that
share the same trust policy
Identity
Identity
Identity
Dataset
Dataset
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
1:n
Dataset
Dataset
Key/Value
Key-value and sync count

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

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

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

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

Analyze User Behavior: Amazon Mobile Analytics

User Analytics (and Cloud Computing)
among top 10 most popular tools
Successful developers use more tools
Developer Economics
State of the Developer Nation Q3 2014
© VisionMobile

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
“Easily collect, visualize and understand your app usage data at scale”
Scalable and Generous
Free Tier
Fast
Focus on metrics that
matter. Usage reports
available within 60
minutes of receiving data
from an app
Scale to billions of
events per day from
millions of users.
Own Your Data
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
Download and integrate the Mobile SDK with one line of
code (Android/FireOS, iOS)
View engagement and session activity reports in the
AWS Management console within minutes

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

Track Custom Events
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
Number of songs
played, per user
session, in a music
app
Understand player
abort rates per
level, in a game
In-app item popularity
in a shopping app

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

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

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

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

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
Baidu CP
Amazon ADM
Windows WNS and
MPNS
Industry’s First!
New!
iOS
Apple iPhones and iPads
Android Phones and Tablets in China
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
Kindle Fire Devices
Windows Desktop and Windows Phone
Devices

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

Collect real-time click-stream data:
Amazon Kinesis Mobile Connector

Amazon Kinesis Connector for Mobile Apps
Amazon
Kinesis
Kinesis S3 Redshift
enabled
Apps on
EC2
AWS
Mobile
SDK
For sophisticated
User Behavior
Analysis
Integrated AWS Mobile SDK
Generic batching system that
handles intermittent network
connection and also optimize
battery utilization

Key Takeaways
AWS Global Infrastructure (10 Regions, Availability Zones, 51 Edge Locations)
Mobile Optimized
Services
Mobile Optimized
Connectors
Core Building Block
Services
Integrated SDK

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

Get Started for Free!
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

Simple and predictable pay as you go pricing
Amazon Cognito Amazon Mobile
Analytics
Amazon SNS
Mobile Push
Free Tier:
1 Million push messages
every month
Thereafter:
$0.50 for Million
notifications delivered
$0.50 for Million requests
Free Tier (for first 12
months):
1 Million syncs/month +
10GB of storage for
Amazon Cognito
Thereafter:
$0.15 for 10K Syncs
$0.15 per GB for storage
Free Tier:
100 Million events every
month
Thereafter:
$1.00 per Million events

Thank You!
#AWSUGHungary
@danilop

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