Building event driven serverless apps by Danilo Poccia at Codemotion Dubai
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The document discusses building event-driven serverless applications using AWS services, highlighting components like AWS Lambda, Amazon API Gateway, and Amazon DynamoDB. It explains the flow of authentication, authorization, and data management in these applications, including examples of microservice architecture. The emphasis is on agility, autonomy, and the efficient management of backend services without the need for infrastructure management.
Building event driven serverless apps by Danilo Poccia at Codemotion Dubai
- 1. Building Event-Driven Serverless Applications Danilo Poccia Technical Evangelist @danilop danilop
- 2. 2001
- 3. Decentralized, two-pizza teams Agility, autonomy, accountability, and ownership “DevOps”
- 4. You Want to Build Your Brand New Application
- 8. Application Files DB Content + Some API Calls API Calls Websites Mobile Apps Wearable
- 9. Application Files DB API Calls Websites (JavaScript Apps) Mobile Apps Wearable JavaScript API Calls
- 11. Application Files DB API Calls Websites (JavaScript Apps) Mobile Apps Wearable Services API Calls JavaScript Authentication & Authorization Caching & Throttling Business Logic API Calls
- 12. Application DB API Calls Websites (JavaScript Apps) Mobile Apps Wearable Services API Calls JavaScript Files Amazon S3 Amazon DynamoDB Authentication & Authorization Amazon Cognito Business Logic AWS Lambda Caching & Throttling Amazon API GatewayAPI Calls
- 13. How Does It Works?
- 14. X Authentication Providers End Users User Credentials Authentication Token Amazon Cognito Identity Broker Identity Pool Id (Token) Identity Id AWS Temp Credentials (Depending on Auth / Unauth Role) Access to AWS Services (Including Amazon API Gateway) Identity Id AWS Temp Credentials Amazon S3 Amazon DynamoDB Amazon Mobile Analytics Amazon Cognito Sync Store K / V Authentication & Authorization Amazon CognitoCheck Token
- 15. X End Users User Credentials Authentication Token Amazon Cognito Identity Broker Identity Pool Id (Token) Identity Id AWS Temp Credentials (Depending on Auth / Unauth Role) Access to AWS Services (Including Amazon API Gateway) Identity Id AWS Temp Credentials Amazon S3 Amazon DynamoDB Amazon Mobile Analytics Amazon Cognito Sync Store K / V Custom Authentication Service Get Token Token Authentication & Authorization Amazon Cognito
- 16. Amazon CloudFront API Gateway Cache Amazon CloudWatch Monitoring & Logs Endpoints on Amazon EC2 or AWS Elastic Beanstalk Internet Any other publicly accessible endpoint AWS Lambda Functions Caching & Throttling Amazon API Gateway X Access to API Method
- 18. Managed Cache to Store API Responses Reduced Latency and DDoS Protection through Amazon CloudFront SDK Generation for iOS, Android and JavaScript HTTP 429 Response for API Throttling (Managed by the SDK) Swagger Support Request / Response Data Transformation and API Mocking
- 19. Business Logic AWS Lambda AWS Lambda Functions Amazon API Gateway Amazon S3 Amazon DynamoDB Amazon Cognito Sync Store K / VAmazon SNS Amazon Kinesis Alexa Skills Kit (ASK) Alexa Voice Service (AVS) HTTPS Invoke Custom Events HTTPS REST API Call Amazon SES Amazon SWF AWS IoT ? ? ? ? ? ? ? Amazon CloudWatch Events
- 20. Build Back-end Services that Perform at Scale Respond Quickly to New Information Run Your Code without Managing Infrastructure Cost-effective and Efficient
- 21. Amazon API Gateway + AWS Lambda
- 22. Resource + HTTP Verb ➔ Method (Function)
- 23. Resource + HTTP Verb ➔ Method (Function) /books + GET ➔ GetAllBooksByRange
- 24. Resource + HTTP Verb ➔ Method (Function) /books + GET ➔ GetAllBooksByRange /books + POST ➔ CreateNewBook
- 25. Resource + HTTP Verb ➔ Method (Function) /books + GET ➔ GetAllBooksByRange /books + POST ➔ CreateNewBook /books/{id} + GET ➔ GetBookById /books/{id} + PUT ➔ CreateOrUpdateBookById /books/{id} + DELETE ➔ DeleteBookById
- 26. Let’s Put Everything Together
- 28. λ λ λ Amazon API Gateway λ λ λ λ Bucket Usage Table Media Metadata Table User Stat Table User Location Table K / V λ λ λ Amazon Cognito Identity Broker Amazon Cognito Sync Store Amazon SNS Amazon Kinesis Media Bucket Log Table Authentication & Authorization Upload Picture / VideoUpdate Bucket UsageCheck Bucket Usage Delete “Over Quota” Media Send Notification to User / Application Extract Metadata and Write on DB Update User Statistics Call REST API to Get Media Description Upload Location Info Update User Location Look for Users or Media Near Current Location Call REST API to Get User Info Sync Media and User Rating Write History of Changes Check and Update Ratings Invoke Read Write / Send
- 30. Microservice Architecture λλ λλ λλ λλ λ λ
- 31. Choreography vs Orchestration λλ λλ λλ λλ λ λ
- 32. Reactive Programming λλ λλ λλ λλ λ λ
- 33. Asynchronous Communication λλ λλ λλ λλ λ λ
- 34. Eventual Consistency λλ λλ λλ λλ λ λ
- 36. Focus on You Idea
- 38. Event-driven (Serverless) Applications Danilo Poccia AWS Technical Evangelist @danilop danilop