© 2015, Amazon Web Services, Inc. or its Affiliates. All rights reserved.

Presenter:

Tara E. Walker

Technical Evangelist

Amazon Web Services’

Q&A Moderators:

James Montemagno

Technical Evangelist

Xamarin

Karthik SaligramaSoftware Dev Engineer

AWS Mobile

Build Cross-Platform Mobile

Apps with AWS & Xamarin SDKNative Mobile Development with AWS and Xamarin

09/17/2015

Agenda

• Overview of Xamarin Framework

• Intro of AWS Mobile SDK for Xamarin

• Building native cross-platform apps with AWS and

Xamarin

• Q&A

“Not only is native mobile code winning for app

development, but with things like Instant Articles,

native is making the browser-based web look like a

relic even just for publishing articles.”

-John Gruber

http://daringfireball.net/2015/05/facebook_instant_articles

Xamarin Platform Overview

Xamarin Platform

Xamarin platform provides ability to share code across all

platforms.• Target iOS, Android, Windows and Mac with a single C# codebase.

• Use the same language, APIs and data structures on every platform.

Provides native UI, native API access & native performance.

Leverage standard, native user interface controls for desired

platform. • Apps look and behave the native way for the OS platform

Anything you can do in Objective-C, Swift, or Java

can be done in C# and Visual Studio with Xamarin.

Traditional Mobile Development Approach

Silo Approach

• No shared code

• Many languages

• Different development

environments

• Multiple teams for mobile

OS targets

iOS WindowsAndroid

Objective-C

Xcode

C#

Visual

Studio

Java

Android

Studio

Xamarin’s Mobile Development Approach

Unique Approach

• Shared codebase

• 100% Native API access

• High performance

• C# language

• 2.6 billions devices

iOS

Android

Mac

Windows

iOS C# UI Windows C# UIAndroid C# UI

Shared C# Mobile

Coding Options: Xamarin + Xamarin.Forms

Traditional Xamarin Approach With Xamarin.Forms:

More code-sharing, all native

iOS C# UI Windows C# UIAndroid C# UI

Shared C# Backend

Shared UI Code

Shared C# Backend

Intro to AWS Mobile Services

and AWS Xamarin SDK

Introducing the AWS Mobile SDK for Xamarin

AWS Development Support for Xamarin Developers

Provides AWS Services C# Language Support for Xamarin

Part of AWS SDK for .NET

Add the desired NuGet packages to your project references to get started.

Support for Portable Class Library and Xamarin Projects

Portable Class Libraries for use in mobile .NET projects.

Supported environments:

Source Code on GitHub at AWS Labshttps://github.com/aws/aws-sdk-net

Xamarin iOS

Xamarin Android

Windows Store

Windows Phone 8.1

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

AWS Mobile Services

Amazon Cognito Amazon Mobile Analytics Amazon SNS Mobile Push

Kinesis Recorder DynamoDB Mapper S3 Transfer Mgr SQS Client SES ClientAWS Lambda

Lambda

Functions

λ

λ

λ

λ

What Our Mobile Customers Have Told Us

Developer’s Mobile App Code

User Identity Mgmt. and Auth

User Data Synchronization

Asynchronous Communication

Active Devices Analytics

User Behavior Analytics

Engagement Analytics

Push Notifications

Event Triggers

Platform agnostic Mobile Backend

Data Validation and Transformation

File and Media Storage

Shared Database Storage

Data Collection

And More….

AWS Cloud Infrastructure

Amazon Cognito

Amazon Mobile Analytics

Amazon SNS Mobile Push

Amazon Lambda New!

Mobile-optimized Connectors(Kinesis, S3, DynamoDB, SQS)

Amazon Cognito Identity

Identity

Providers

Unique

Identities

Any

Device

Any

Platform

Joe Anna Bob

Mobile

AnalyticsS3 DynamoDB Kinesis

Any

AWS

Service

Support Multiple Login ProvidersEasily integrate with major login providers for

authentication.

Unique Users vs. DevicesManage unique identities. Automatically

recognize unique user across devices

and platforms.

Amazon Cognito Sync

Store App Data, Preferences

and StateSave 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 OfflineData stored in local SQLite DB first. Works

seamlessly when intermittent or no

connectivity

User Data

Storage and

Sync

Any Platform

iOS/Android/FireOS

Windows Phone (w/.NET SDK)

key/value

data

Identity pool

Amazon Simple Storage Service (S3)

Amazon S3 Transfer Manager• Makes it easy to access S3 from Mobile Apps

while optimizing for performance and reliability

• Hides complexity behind a simple API

• Pause, resume, cancel functions

• Track Progress

• Multipart upload

What is Amazon S3• Storage for the internet

• Highly-scalable, reliable, and low-

latency data storage infrastructure at

very low costs

• Store any kind of data in any format

Jo

e

Anna Bo

b

High

Scores

Joe 1500

Anna 800

Bob 750

Amazon DynamoDB

Amazon DynamoDB Object Mapper • Simplifies access to Amazon DynamoDB in

you app

• Map client-side classes to Amazon

DynamoDB tables

• Removes the need to transform objects into

tables and vice versa.

What is Amazon DynamoDB• Fully managed NoSQL database service

• Provides fast and predictable performance

• Seamless scalability

• Low Latency

• Zero administration overhead

AWS Lambda

What is AWS Lambda• Event-Driven Compute in the Cloud

• Stateless, request-driven code execution via AWS Lambda

functions

• Triggered by events or state transitions in other AWS services

or your custom events i.e. File uploaded to S3

AWS Lambda Mobile Backend • Makes it easy to asynchronously transform, process

retrieve data as it reaches the cloud or as events trigger

• Perform data-driven auditing, analysis, and notification

• Kick off workflows

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

Amazon SNS

Cross-platform

Mobile Push

Internet

Apple APNS

Google GCM

Amazon ADM

Windows WNS

and MPNS

Baidu CP

Android Phones and Tablets

Apple iPhones and iPads

Kindle Fire Devices

Android Phones and Tablets in

China

iOS

Windows Desktop and Windows

Phone Devices

What is Amazon SNS?• Managed Push Notification Service

• Send individual messages or fan-out

messages to large numbers of

recipients.

SNS Mobile Push • Send notifications to Apple, Google, Fire

OS, Windows devices, and Android

devices in China with Baidu Cloud Push

• Messages sent to a mobile endpoint can

appear in the mobile app as message

alerts, badge updates, or even sound

alerts.

Demo: MyRestaurant

AWS and Xamarin Resources

AWS Xamarin Developer Guide

https://docs.aws.amazon.com/mobile/sdkforxamarin/developerguide/index.html

Xamarin Developer Guides

https://developer.xamarin.com/

AWS Mobile Services

http://aws.amazon.com/mobile

AWS Xamarin GitHub Samples

https://github.com/awslabs/aws-sdk-net-samples

Xamarin GitHub Samples

https://github.com/xamarin/xamarin-forms-samples

https://github.com/xamarin/monotouch-samples

https://github.com/xamarin/monodroid-samples

Q&A

Tara E. Walker

Technical Evangelist

@taraw