The document discusses serverless computing on AWS. It provides an overview of AWS serverless services like AWS Lambda, Amazon API Gateway, Amazon DynamoDB, and Amazon S3. These services allow building applications without having to manage servers or clusters. The document also presents examples of using serverless for building chatbots, serving static/dynamic content, and containers with AWS Fargate. It emphasizes that serverless allows focusing on business logic rather than infrastructure management.

1. AWS Quick Start
Build a Serverless Web
Application
Apeksha Jain
Solutions Architect, AWS

2. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Agenda
Serverless
Foundations
Use Cases &
Architecture
AWS Serverless
Services

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Serverload
Hour of day
Why serverless?
© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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Serverless Means …
No servers to provision
or manage
Scales with usage
Never pay for idle Built in availability and
fault tolerance

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Spectrum of AWS Serverless Services
AWS Lambda
Amazon DynamoDB
Amazon SNS
Amazon API Gateway
Amazon SQS
Amazon Kinesis
Amazon S3
Compute and API Proxy
AWS X-Ray
AWS Step Functions
Datastores, Storage, Orchestration, Analytics, Interprocess Messaging
Developer Tools
AWS CodeBuild
AWS CodePipeline
AWS Serverless
Application Model (SAM)
Open Source and
third parties
Lambda@Edge
AWS Cloud9
Amazon Aurora
Serverless
AWS AppSync

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Focus on building business logic
!

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CUSTOMERS LOVE SERVERLESS

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What we can do with serverless?

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Serving Static Content
Icon made by FlatIcon

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Serving Dynamic Content - Restful
Services
Mobile client
Client
Internet
API Gateway
Cache
API Authorization
VPC Endpoints
All publicly accessible
endpoints
AWS Cloud

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“Can I go ahead
with the booking?
Serverless Hotel Booking Chatbot
AWS Lambda and Amazon Lex
“Book a Hotel in
NYC”
Automatic Speech Recognition
Hotel Booking
New York City
Natural Language
Understanding
Intent/Slot
Model
UtterancesHotel Booking
City New York City
Check in Nov 30th
Check out Dec 2nd
“Your hotel is booked for Nov
30th”
Amazon Polly
Confirmation: “Your hotel is
booked for Nov 30th”
Book Hotel
NYC
a
in

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Services to get started for building
your serverless applications

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AWS Lambda
Services (anything)
Changes in
data state
Requests to
endpoints
Changes in
resource state
Event source Lambda function
Node.js
Python
Java
C#
Go
( Or bring you own
runtime)

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Lambda execution model
Synchronous (push) • Asynchronous (event) • Stream-based
Amazon
API Gateway
Lambda
function
Amazon
DynamoDBAmazon
SNS
/order
Lambda
function
Amazon
S3
Reqs
Amazon
Kinesis
Changes
AWS Lambda
service
Function

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Amazon S3 Amazon
DynamoDB
Amazon
Kinesis
AWS
CloudFormation
AWS CloudTrail Amazon
CloudWatch
Amazon
Cognito
Amazon SNSAmazon
SES
Cron events
DATA STORES ENDPOINTS
DEVELOPMENT AND MANAGEMENT TOOLS EVENT/MESSAGE SERVICES
Event sources that trigger AWS Lambda
… and more!
AWS
CodeCommit
Amazon
API Gateway
Amazon
Alexa
AWS IoT AWS Step
Functions

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Fine-grained pricing
Buy compute time in 100ms increments
Low request charge
No hourly, daily, or monthly minimums
No per-device fees
Never pay for idle
Free Tier
1M requests and 400,000 GB of compute.
Every month, every customer.

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Create a unified
API front end for
multiple micro-
services
Authenticate and
authorize
requests to a
backend
DDoS protection
and throttling for
your backend
Throttle, meter,
and monetize API
usage by third-
party developers
Amazon API Gateway

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Amazon API Gateway
Internet
Mobile Apps
Websites
Services
AWS Lambda
functions
AWS
All publicly
accessible endpoints
Amazon
CloudWatch
monitoring
Amazon
CloudFront
Any other AWS
service
Endpoints on
Amazon EC2
AWS Step
Functions

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Aurora Serverless
On-demand, auto-scaling database for applications with variable workloads
Starts up on demand, shuts down when not in
use
Automatically scales with no instances to
manage
Pay per second for the database capacity you
use
Warm capacity
pool
Application

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Amazon DynamoDB
• Managed NoSQL database
• Provisioned throughput
• Fast, predictable performance
• Fully distributed, fault tolerant
• JSON support
• Items up to 400 KB
• Time-to-live (TTL)
• Streams and triggers
• AWS Application Auto Scaling
• Global tables
AWS Database
Migration Service
(AWS DMS)!

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Amazon Cognito
Simple and Secure User Sign-Up,
Sign-In, and Access Control

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Amazon Cognito overview
Web and mobile
apps
Developers focus on what
is special about their app
Amazon Cognito
handles auth and
identity
Federation
Managed user directory
Hosted UI
AWS credentials
Standard tokens

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Amazon Simple Storage Service (Amazon S3)
Object-based storage
Highly durable
Great for static assets
“Infinitely scalable”
Objects up to 5 TB in size
Encryption at rest and in transit

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Amazon CloudFront
ResponseTime
ServerLoad
ResponseTime
Server
Load
Response
Time
Server
Load
No CDN CDN for static content CDN for static &
dynamic content
0
20
40
60
80
12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM12:00
AM
VolumeofData
Delivered(Gbps)

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Bringing It All Together…

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Bringing It All Together…
Static Content
Content Delivery API Layer Application Layer Persistency Layer

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How about Containers?
Serverless Containers?

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AWS Fargate
Run containers without managing servers or clusters
No instances
to manage
Task
native API
Resource
based pricing

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Summary
Serverless = focusing your efforts on what
provides value to users.

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aws.amazon.com/serverless

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