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Lessons (13)

• DynamoDB Modeling, RDS Scaling and Data Resilience

  Design DynamoDB tables around access patterns, then scale and protect relational databases with replicas, proxies and Multi-AZ …

• Serverless Architecture

  … create an order from an HTTP request import { DynamoDBClient } from "@aws-sdk/client-dynamodb"; import { DynamoDBDocumentClient, PutCommand } from …

• AWS Databases: Choose the Right One

  … key-value storage DynamoDB is not SQL. You design from the access pattern first: “get order by order …

• SQL vs NoSQL Databases

  … four families mermaid mindmap root((NoSQL)) Document MongoDB Firestore JSON documents Key-value Redis DynamoDB get / set by …

• VPC Endpoints, Transit Gateway and Hybrid Networking

  … By default, a private subnet reaches S3 or DynamoDB through a NAT gateway , which costs money per hour …

• Resilience, Disaster Recovery and Multi-Region Design

  … Cross-Region Replication (needs versioning; replicates new objects) DynamoDB Global tables with explicitly chosen eventual or strong multi …

• Cost Optimization and the Well-Architected Framework

  … add S3 and DynamoDB gateway endpoints; use interface endpoints for heavy services; keep traffic within an AZ. 3 …

• State, Remote Backends, and Locking

  … Current HashiCorp documentation marks DynamoDB-based locking as deprecated; use native S3 locking for these new examples. See …

• What Is Software Architecture?

  … flexible schema, but weaker multi-document transactions for our use case - DynamoDB: great scale, but complex queries and …

• Event-Driven Patterns, Step Functions and Reliable Lambdas

  … recover from bugs. - Pipes connect a source (SQS, DynamoDB stream) to a target with optional filtering and enrichment …

• Serverless: Lambda and API Gateway

  … API Gateway] G -- L[Lambda function] L -- D[DynamoDB or another service] The important settings Setting Plain meaning …

• AWS: Start Here

  … ECS, EC2, or Lambda] A -- D[RDS or DynamoDB] A -- S[S3 files] Need AWS service to learn …

• Hexagonal Architecture (Ports & Adapters)

  … Admin UI, import job Driven ForStoringLoans ( LoanRepository ) Postgres, DynamoDB, in-memory Driven ForNotifyingMembers ( Notifier ) Email, SMS, push, console …