E-commerce Marketplace Architecture Template
Multi-vendor catalog, checkout, order fulfillment, and seller management. Generate a complete cloud architecture with cost estimates, Terraform, sequence diagrams, CLI deployment workflows, and a GitHub Actions pipeline — on AWS, Azure, or GCP.
Production estimates. Your workspace generates actuals.
Architecture Overview
Syncs a multi-vendor product catalog, routes checkout payments with per-seller splits, processes orders through a fulfillment pipeline, and surfaces products through a full-text search index with personalized recommendations.
~8
cloud services
AWS Architecture Diagram
Full topology with all services and request flows — switch providers above to compare.
E-commerce Marketplace - AWS - Production implementation lanes - CloudDesign AI
Architecture Breakdown
Every major component, what it does, and the AWS service powering it.
API Server
Amazon API Gateway
Routes, authenticates, and rate-limits incoming requests.
Catalog & Order DB
Amazon ECS Fargate
Stores and retrieves data with durability and access controls.
Product Search
Amazon OpenSearch Service
Indexes and retrieves content with full-text and vector search.
Session Cache
Amazon ElastiCache Redis
Serves high-frequency reads at sub-millisecond latency.
Fulfillment Queue
Amazon SQS
Decouples producers from consumers for async processing.
Payment Splits
AWS Lambda
Handles business logic and integrates with surrounding services.
Product Images
Amazon OpenSearch Service
Handles business logic and integrates with surrounding services.
Fraud Detection
Amazon Fraud Detector
Handles business logic and integrates with surrounding services.
Cost Estimate — AWS
Representative production estimate. Your workspace generates a breakdown based on your actual configuration.
AWS — $625 / month estimated
ECS Fargate
App server
RDS Aurora
Catalog & orders
OpenSearch
Product search
ElastiCache
Session cache
SQS
Fulfillment queue
S3 + CloudFront
Product images + CDN
SageMaker
Fraud detection
CloudWatch
Monitoring
Total estimate
$625 / month
What CloudDesign AI Generates
Every generation produces a complete set of production-ready artifacts.
Architecture Diagram
Full topology showing every service and how traffic flows between them.
Sequence Diagrams
Request lifecycle flows for upload, query, and overall system paths.
Cost Analysis
Per-service cost breakdown with total estimate for the selected provider.
Terraform Code
Complete infrastructure-as-code export you can deploy immediately.
CLI Deployment Workflow
Ordered provisioning commands for every service in the architecture.
GitHub Actions Pipeline
Ready-to-commit `.github/workflows/terraform.yml` for CI/CD.
Tradeoff Analysis
Cost, scalability, reliability, and operational complexity breakdown.
Production Checklist
Architecture-specific risks and mitigations before you go live.
Terraform Preview — AWS
Provider-specific infrastructure code. The full export is available after generating.
resource "aws_ecs_cluster" "marketplace" {
name = "${var.prefix}-marketplace"
}
resource "aws_opensearch_domain" "products" {
domain_name = "${var.prefix}-products"
engine_version = "OpenSearch_2.11"
}
resource "aws_elasticache_replication_group" "sessions" {
replication_group_id = "${var.prefix}-sessions"
node_type = "cache.r7g.large"
}
# + 360 more lines — generate the full export →Full Terraform export includes: variables, outputs, IAM roles, environment configs, and module structure.
Generate Full TerraformCLI Preview — AWS
Ordered provisioning commands for every service. The full workflow is generated in your workspace.
aws ecs create-cluster --cluster-name $PREFIX-marketplace
aws opensearch create-domain --domain-name $PREFIX-products
aws elasticache create-replication-group \
--replication-group-id $PREFIX-sessions --cache-node-type cache.r7g.large
aws sqs create-queue --queue-name $PREFIX-fulfillment
# + 26 more commands — generate the full workflow →Full CLI workflow includes: bucket creation, networking, IAM setup, application deployment, and health checks — in order.
Generate Full CLI WorkflowCloud Provider Mapping
Every architectural function mapped to its native service on AWS, Azure, and GCP.
Architecture Tradeoffs
How AWS, Azure, and GCP compare across the dimensions that matter most for this architecture.
Search Quality
OpenSearch and Azure AI Search lead on faceted search, boosting, and geo-search; Vertex AI Search for Commerce adds retail-tuned ranking on GCP.
Cost Efficiency
GCP Cloud Run and Cloud SQL are well-priced for e-commerce workloads with traffic spikes.
Scalability
All three support flash-sale traffic spikes — the key is Redis-backed inventory counters, not the cloud provider.
Fraud Detection
AWS SageMaker has the most pre-built fraud-detection models and marketplace integrations.
Multi-vendor Payments
Stripe Connect handles multi-vendor payment splits equally well on all three providers.
Production Risks for This Architecture
Known failure modes with concrete mitigations — included in every generated checklist.
Inventory oversell race condition under flash sale traffic: optimistic locking at the database layer is not enough under burst load — use Redis atomic DECR for real-time inventory counters with DB sync on order confirmation
Payment split timing mismatch with order cancellation: if a seller payout runs before a buyer cancellation window closes, refund processing involves a chargeback cycle — hold payouts until the return window expires
Search index lag causing stale availability: OpenSearch propagation delay means sold-out products can still appear in search results for seconds — filter availability in the API response against the RDS source of truth before rendering
Key Capabilities Covered
Frequently Asked Questions
Common questions about this architecture and what CloudDesign AI generates.
Generate the E-commerce Marketplace Architecture
Get the full architecture diagram, cost breakdown, Terraform, CLI workflow, and GitHub Actions pipeline — specific to your chosen cloud provider.
Free account · No credit card required · 5 architecture runs per month