by Nader Dabit, Developer Advocate AWS You’ve got an awesome startup idea – Wild Rydes! The next generation in transportation will be driven by a willing unicorn population and your new startup will produce the worlds first unicorn hailing services. It’s just seven days to launch, and your designers have delivered the final designs for your website, but your idea depends on the mobile economy! Can you build out your web and mobile infrastructure in time for your launch? Across three days, AWS experts will guide you through all the pieces that are needed to produce an awesome mobile experience for both your unicorns and your riders.

1. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Pop-up Loft
Build a Serverless Backend for Requesting a Ride
Speaker Name,
Speaker Title

2. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Scenario: Serverless Backend
Our users are now signing up to
our service. It’s time to get our
unicorns working. Produce a
backend for our service. Just be
aware we are expecting a huge
turnout on day 1, so make sure
we scale to handle demand!
Giddy Up!

3. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
The AWS Serverless Platform from A to Z
An Introduction to Amazon API Gateway and AWS Lambda

4. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
In the beginning…
Physical Hardware – time to value = Months

5. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Amazon Elastic Compute Cloud (EC2)
• Allows developers to
obtain compute capacity
on-demand
• Create virtual servers in
the cloud with the click of
a button
Virtual Machines – time to value = Days

6. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Amazon Elastic Container Service (ECS)
• Allows developers to
obtain compute capacity
on-demand
• Create containers at the
press of a button
Containers – time to value = Hours

7. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
The evolution of backend computing
Serverless
Containers
Virtualization
Hardware
More time on code
More time on infrastucture

8. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Serverless Computing
• Fully Managed
§ No provisioning
§ No security patches
§ Fault tolerant
• Continuous Scaling
§ Scales up and down with demand
§ Never pay for idle resources
• Developer Productivity
§ Focus on your application
§ Experiment and innovate quickly

9. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
AWS Lambda: Serverless computing
• Run code without servers. Pay only for the compute time you consume.
• Triggered by events or called from APIs:
§ PUT to an Amazon S3 bucket
§ Updates to Amazon DynamoDB table
§ Call to an Amazon API Gateway endpoint
§ Mobile app back-end call
§ And many more…
• Makes it easy to:
§ Perform real-time data processing
§ Build scalable back-end services
§ Glue and choreograph systems

10. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Benefits of AWS Lambda
No Servers to Manage Continuous Scaling Don’t Pay for Idle Resources
Lambda allows you to run
application logic without
provisioning servers or worrying
about the health or security of
underlying resources
Lambda scales infrastructure
beneath your application logic;
just send requests and events
and Lambda will automatically
scale to accommodate it
With Lambda, you’re billed in
100ms increments of execution
time and number of requests and
you’re never charged for anything
when your code isn’t running

11. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Amazon DynamoDB
• Fast and flexible NoSQL database service for any scale
Simple to use
• GetItem(primaryKey)
• PutItem(item)
Robust Depth
• Fine-Grained Access Control
• Streams
• Triggers
• Cross-Region Replication
• DynamoDB local
• Free-text search
• Titan Graph Database integration
• Strong consistency option
• Atomic counters

12. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Amazon API Gateway
• Create, publish, maintain, monitor, and secure APIs at any scale
Create a unified API
frontend for multiple
backend microservices
DDoS and throttling to
protect your backend
microservices
Authenticate and authorize
requests to your backend
microservices

13. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Workshop: Integrating A Serverless Backend

14. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Wild Rydes Architecture
AWS cloud
Amazon S3
bucket
CloudFront
distribution
Amazon Cognito
Amazon API
Gateway
Lambda function Amazon
DynamoDB
Cloud Logic makes developing
HTTP endpoints easy
• Write your code in JavaScript
• Link resources easily
• Upload with awsmobile
• Access with AWS Amplify

15. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
What we are going to do:
1. Create a NoSQL Database for our backend
2. Create some HTTP endpoints to handle business logic
3. Write code in our web application to call the HTTP endpoints

16. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Step 1: Create a DynamoDB Table
• Open the AWS Mobile Hub Console.
• Choose your project.
• Choose NoSQL Database from the list of additional backend features.
• Choose Enable NoSQL, then Create Table.
• Create a Custom table.
• Fill in the form:
– Table name: Rides.
– Permissions: Public.
– Attribute: RideId (String, Partition Key)
• Choose Create table (and again)
• In your command line, execute awsmobile pull

17. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Step 2: Create a HTTP Endpoint
• Run awsmobile cloud-api enable --prompt
– Create a new API
– API Name: requestUnicorn
– Restrict API Access to signed-in users? Y
– HTTP Path Name: /ride
– Lambda Function Name: requestUnicorn
– Add another HTTP path name? N
• Copy server/requestUnicorn.js to
awsmobilejs/backend/cloud-api/requestUnicorn/app.js
• Run awsmobile push

18. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Step 3: Add code to client
• Edit src/pages/MainApp.js
• Adjust the getData() method:
async getData(pin) {
const body = {
PickupLocation: {
Longitude: pin.longitude,
Latitude: pin.latitude
}
};
return await API.post(apiName, apiPath, { body });
}

19. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Step 4: Try the completed app
• Run awsmobile publish to publish your content to the web
• Open browser to your S3 location
• Click ‘Giddy Up!’ on the home page
• Sign in
• Click a location on the map to set the PIN
• Click Request to request your unicorn

20. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Congratulations!
We’ve made an awesome web
experience that our users can use
to request a Unicorn.
However, you aren’t always in
front of a web browser when you
need your unicorn. Perhaps a
mobile app is a good idea.
But that’s a problem for tomorrow

21. © 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved
Pop-up Loft
aws.amazon.com/mobile
@AWSforMobile
Everything you need to connect
Your mobile app to the cloud