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Summary

- Craig Hind presenting.
Characteristics of Modern digital business environment:
- Delivering Value
- Employment
- Test/Learn/Iterate
- Strategic use of data
- Tech at the core
Caps of a modern app:
- Secure, Resilience, Elastic, Modular, Automated, Interoperable
Biz Service Teams
- 2 pizza rule
- DevOps, small nimble team
- Focused innovation
- API based.
- Focused innovation.
  - Note that Amazon was not a tech-company. It's a robotic focused distribution service.
3Tier:
- used to be Presentation, Logic, Storage
  - has morphed to
    - Compute:
      
      EC2: virtual server instances (IaaS)
      
      ECS and EKS: Container management service for running Docker on a managed cluster of EC2.
      
      AWS Fargate: Container management service for running Docker on a managed cluster of EC2.
      
      Serverless containers….Cool.
      
      AWS Lambda: Serverless compute for stateless code execution in response to triggers.
    - Data Stores:
      
      S3
      
      Aurora RDS
      
      DynamoDB
      
      DocumentDB
      
      ElasticCache
  - INtegration:
    - EventBridge
    - SQS
    - SNS
    - Step Functions
    - API Gateway
    - AppSync
APIs are the front door of microservices
- A challenge is proving cross-system
API Gateway:
- Host multiple versions & stages of APIs
- Create/distribute API Keys to devs
- Throttle /monitor request to protect your backend
- Leverage signature version 4 to authorise access to APIs
- Perform Request/Responde data transformation and API mocking
- Reduce latency and DDos protection through CloudFront
- Store API response through managed cahces
- Generage SDKs fro Java, JavaScript, Java for Android, Objective-C or Swift for iOS and RUby
Event based development:
- Event Routers
- Async Events
  - Event Stores (Push/Pull)
  Amazon EventBridge:
Publish:
- AWS Services - Default event bus
- Custom Events - custom event bus
- Saas Apps → EventSource –
  
  > SaaS EventBus
  
  *
  
  COnsume:

AWS Lambda

Amazon Kinesis

AWS Step Functions

Additional targets

Data:

RElational
Key-Value (real-time bidding, shopping cart, social, product, catalog, customer preferences)
Document (CMS, Personalisation, mobile)
In-Memory (leaderboards, real-time analytics, caching)
Graph (fraud detection, social networking, recommendation engine)
Time-Series (iot applications, event tracking)
Ledger (immutable)

* Options:

Rehost
Replatform
Refactor (microservices)
ReInvent (serverless)