Category Composable Commerce | AWS | Architecture Knowledge Hub

Ten Architecture Principles That Separate Great Composable Platforms from Expensive Distributed Monoliths

Apr 15, 2024

The synthesis of the entire series: designing for unpredictable failure, the stateless PBC constraint, security as infrastructure, polyglot persistence, and why the composable migration is an architecture not a project.

#Composable Commerce

#AWS

#Architecture Best Practices

#MACH Architecture

#Well-Architected Framework

#Cloud Native

#Microservices

#Digital Transformation

AWS Compliance for Composable Commerce: What You Inherit and What You Still Own

Apr 8, 2024

The three-layer responsibility model for composable platforms, AWS Artifact for QSA evidence, Config auto-remediation rules, and GDPR right-to-erasure implemented as a cross-PBC cascade.

Securing 15 Services at Once: The Security Architecture of Composable Commerce

Apr 1, 2024

Defence-in-depth across six independent layers, WAF rules tuned for composable storefronts, the Payment PBC PCI isolation pattern, IMDSv2 enforcement, and CloudTrail as incident response infrastructure.

The Infrastructure Glue: CloudFront, Kinesis and CloudFormation for Composable Commerce

Mar 25, 2024

CloudFront cache behaviours per PBC path, Kinesis Streams for real-time personalisation signals, Kinesis Firehose for the analytics pipeline, and CloudFormation as the deployment contract between platform and PBC teams.

#Infrastructure as Code

ElastiCache: Making 15 API Calls Feel Like One to the Shopper

Mar 18, 2024

Cache-aside per PBC with versioned keys, TTL as a business decision, Redis data structures for sessions and flash-sale inventory counters, atomic operations, and Multi-AZ failover for session continuity.

#Caching Architecture

#MACH Architecture

#Performance

#Flash Sales

Route 53 as the Global Traffic Director for Your Composable Commerce Platform

Mar 11, 2024

Alias records at the zone apex, all five routing policies mapped to composable commerce requirements, health checks that test business readiness not just ports, and GDPR compliance through geolocation routing.

SQS, SNS and the Event-Driven Backbone of Composable Commerce

Mar 4, 2024

The order-placed fan-out pattern, visibility timeout as a reliability contract, Dead Letter Queues as revenue alerts, idempotent consumers, and SNS for zero-code PBC subscription extensibility.

#Event-Driven Architecture

#MACH Architecture

#Loose Coupling

#Async Architecture

One Platform, Three Databases: RDS, DynamoDB and Redshift in Composable Commerce

Feb 26, 2024

Polyglot persistence for composable PBCs - Aurora for Order Management, DynamoDB for Cart and Session, Redshift as the cross-PBC analytics layer, and the data ownership contract that keeps PBCs truly independent.

#Polyglot Persistence

#Data Architecture

Zero-Trust Between Your Own Services: IAM for Composable Commerce

Feb 19, 2024

One IAM role per PBC, eliminating credentials from code, cross-PBC SigV4 authorisation patterns, Secrets Manager auto-rotation, and blast radius containment through least-privilege design.

The Elasticity Engine: ELB, CloudWatch and Auto Scaling for Composable Commerce

Feb 12, 2024

ALB path-based routing for PBC dispatch, business-level CloudWatch metrics beyond CPU, per-PBC Auto Scaling strategies, and connection draining for zero-downtime composable deployments.

#Composable Commerce

#AWS

#Elastic Load Balancing

VPC Design Patterns for Composable Commerce: Isolation Without Friction

Feb 5, 2024

The reference subnet topology for multi-tier composable platforms, Security Groups vs NACLs defence-in-depth, VPC Endpoints for keeping PBC traffic private, and Transit Gateway for multi-team deployments.

#Microservices Networking

Sizing EC2 for Composable Commerce: Why Your PBCs Don't All Need the Same Instance

Jan 29, 2024

Instance family selection, golden AMI deployment contracts, Reserved vs Spot pricing strategies, and the stateless PBC imperative - the compute decisions that drive cost and resilience.

#Stateless Architecture

S3 Is the Silent Infrastructure of Every Composable Commerce Platform

Jan 22, 2024

How Amazon S3 and Glacier function as the shared asset backbone across PBCs - from pre-signed URL patterns and lifecycle policies to cross-region replication and compliance archiving.

#Compliance Archiving

Why Composable Commerce Starts With AWS Global Infrastructure

Jan 15, 2024

How AWS Regions, Availability Zones, and Edge Locations form the reliability substrate for MACH-based composable commerce platforms - and why Region selection is an architectural decision, not a deployment detail.

#Global Infrastructure

#Availability Zones

#Direct Connect

#Hybrid Architecture

AWS for Composable Commerce: The Complete Architecture Series

Jan 8, 2024

A full 14-article series mapping every major AWS service to composable commerce PBC design - infrastructure, security, data, and messaging patterns for MACH architects.