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Build a Server-less Event-driven Backend with AWS Lambda and Amazon API Gateway
The document discusses building a serverless, event-driven backend architecture using AWS Lambda and Amazon API Gateway. It describes how API Gateway can be used to define HTTP endpoints that trigger Lambda functions to execute business logic. This allows building scalable backend services without having to manage servers. The document provides an example media sharing application architecture built with this approach.
Build a Server-less Event-driven Backend with AWS Lambda and Amazon API Gateway
- 1. Build a Server-lessEvent-driven Backend with AWS Lambda and Amazon API Gateway Danilo Poccia AWS Technical Evangelist @danilop danilop
- 2. You Want toBuild Your Brand New Application
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- 6. Application Files DB Content + Some APICalls API Calls Websites Mobile Apps Wearable
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- 9. Application Files DB API Calls Websites (JavaScript Apps) Mobile Apps Wearable Services API Calls JavaScript Authentication &Authorization Caching & Throttling Business Logic API Calls
- 10. 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
- 11. How Does ItWorks?
- 12. X Authentication Providers End Users User Credentials Authentication Token Amazon Cognito IdentityBroker 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
- 13. X End Users User Credentials Authentication Token Amazon Cognito IdentityBroker 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
- 14. 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
- 16. Managed Cache toStore 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
- 17. Business Logic AWS Lambda AWS Lambda Functions Amazon APIGateway 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
- 18. Build Back-end Servicesthat Perform at Scale Respond Quickly to New Information Run Your Code without Managing Infrastructure Cost-effective and Efficient
- 19. Amazon API Gateway + AWSLambda
- 20. Resource + HTTPVerb ➔ Method
- 21. Resource + HTTPVerb ➔ Method /books + GET ➔ GetAllBooks
- 22. Resource + HTTPVerb ➔ Method /books + GET ➔ GetAllBooks /books + POST ➔ CreateNewBook
- 23. Resource + HTTPVerb ➔ Method /books + GET ➔ GetAllBooks /books + POST ➔ CreateNewBook /books/{id} + GET ➔ GetBookById /books/{id} + PUT ➔ CreateOrUpdateBookById /books/{id} + DELETE ➔ DeleteBookById
- 24. Let’s Put EverythingTogether
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- 26. λ λ λ Amazon API Gateway λ λ λ λ BucketUsage 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
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- 29. Focus on YouIdea
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- 31. Build a Server-lessEvent-driven Backend with AWS Lambda and Amazon API Gateway Danilo Poccia AWS Technical Evangelist @danilop danilop