In this session, we will share our insights and learnings of using AWS as the cloud platform to build a cost-effective, scalable and cloud-native architecture for our business logic. After a general overview we will dive deep into our architecture and implementation, discuss the platform services we used to build the solution, and talk about our lessons learned from our journey. We will show our use of AWS Step Functions to build serverless workflows, and how we wrapped it as a microservice to serve other parts of the solution.

1. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Innovate –
Let your business logic go serverless
Oren Reuveni
Solutions Architect
Amazon Web Services
D E V 3 0 2
Uri Segev
Principal Solutions Architect
Amazon Web Services

2. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

3. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
FrontendData Microservices Common
Interfaces
Machine Learning Services
Serverless Scheduler Data lake and Analytics
Flights
Resources
31
2
4
5
AWSome Airlines architecture

4. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

5. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Events Topic
SNS
Plane State Machine
Step Functions
Topic Listener
Lambda Function
Activity Poller
ECS Fargate
Tasks Table
DynamoDB
Tasks API
API Gateway
Tasks API
Lambda Function
Scheduler architecture

6. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
What is serverless?
No infrastructure provisioning,
no management
Automatic scaling
Pay for value Highly available and secure

7. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
AWS
Lambda
AWS
Fargate
COMPUTE
DATA STORES
INTEGRATION
Amazon Aurora
Serverless
Amazon
S3
Amazon
DynamoDB
Amazon
API Gateway
Amazon
SNS
Amazon
SQS
AWS
Step Functions
AWS
AppSync

8. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
AWS Step
Functions
AWS
Lambda
Amazon
DynamoDB
Amazon
API Gateway
AWS
SAM
In this session

9. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
AWS Lambda
• Run code without provisioning or managing
servers
• Pay only for the compute time you consume
• Virtually any type of application or backend
service
• Zero administration
• Trigger from other AWS services or call it
directly from any web or mobile app

10. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Serverless applications
Services (anything)
Changes in
data state
Requests to
endpoints
Changes in
resource state
Event source Function
Node.js
Python
Java
C#
Go
Ruby
Runtime API

11. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Amazon API Gateway
• Fully managed service that makes it easy for
developers to publish, maintain, monitor, and
secure APIs at any scale
• Key Features
• Native AWS Service Integration
• SDK Generation
• API Authorization
• API Monitoring using Amazon CloudWatch
• API-Keys for 3rd Party Developers
• WebSocket support

12. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Amazon DynamoDB
• Fast and flexible key value database service
for any scale
• Key Features
• Performance at scale
• Serverless
• Comprehensive security
• Global database for global users and apps

13. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
CI/CD for serverless applications
• Source code repository hosts SAM template
• CodePipeline per application
• CodeBuild generates a deployable artifact
• CodePipeline/CodeDeploy deploys to
different environments, with the right
config
CodeBuildCodeCommit CodePipeline
CloudFormation
API Gateway
Lambda
Dev account
Step Functions
DynamoDB
CodeDeploy
CloudFormation
API Gateway
Lambda
Test account
Step Functions
DynamoDB
CodeDeploy
CloudFormation
API Gateway
Lambda
Prod account
Step Functions
DynamoDB
CodeDeploy
Tools accountCode account

14. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
AWS Serverless Application Model (SAM)
• AWS CloudFormation extension optimized for
serverless
• Special serverless resource types:
• Functions, APIs, SimpleTables and Layers
• CLI tool for local development, debugging,
testing, deploying, and monitoring of
serverless applications
https://aws.amazon.com/serverless/sam

15. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
AWS SAM CLI
$ sam init
$ sam build
(sam local)
$ sam package
$ sam deploy
Initializes a serverless application with an AWS SAM template
Build your application and generate deployment artifacts
Invokes a local function/API
Packages an AWS SAM application
Deploys an AWS SAM application

16. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

17. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
AWS Step Functions
• Serverless workflow management with zero
administration
• Key Features
• Coordinate the components of distributed applications
and microservices using visual workflows
• Automatically triggers and tracks each step and retries
when there are errors
• Logs the state of each step
• Service integrations:
Amazon
SNS
Amazon
SQS
Amazon
SageMaker
AWS
Glue
AWS
Batch
Amazon
ECS
AWS
Fargate
AWS
Lambda
Amazon
DynamoDB

18. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

19. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Key takeaways
• Serverless can be used to rapidly build systems at scale
• Not only Lambda, an large ecosystem
• Combining Lambda and AWS managed services
• Use SAM framework

20. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
FrontendData Microservices Common
Interfaces
Machine Learning Services
Serverless Scheduler Data lake and Analytics
Flights
Resources
31
2
4
5
What’s next

21. Thank you!
© 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Oren Reuveni
Uri Segev
http://bit.ly/2SJ6Dq0