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Event Booking Platform Architecture Template

Ticket sales, seat reservation, waitlists, and real-time availability. Generate a complete cloud architecture with cost estimates, Terraform, sequence diagrams, CLI deployment workflows, and a GitHub Actions pipeline — on AWS, Azure, or GCP.

Generates forAWSAzureGCP
Cost Estimates
AWS$187 / month
Azure$212 / month
GCP$168 / month

Production estimates. Your workspace generates actuals.

Architecture Overview

Locks seat reservations with atomic counters to prevent overselling, processes ticket payments, generates QR-coded e-tickets, and manages waitlists with automated promotion notifications and organizer analytics.

Services Selected

~8

cloud services

API GatewayElastiCache RedisRDS AuroraStripe (external)Lambda+3 more
Cloud Provider

AWS Architecture Diagram

Full topology with all services and request flows — switch providers above to compare.

Cloud Provider
AWS Architecture DiagramProduction flow SVG - implementation-order handoffs
100%
AWS Event Booking PlatformAWS PRODUCTION ARCHITECTURErequestrouteread · writeenqueue · publishsecrets · metrics · auditUsersCLIENT & EDGEAmazon CloudFrontCDN / Static AssetsAWS WAF + ShieldWAF / DDoSAmazon API GatewayAPI GatewayAmazon CognitoAuth / RolesAPI Gateway WebSocketReal-time AvailabilityAPPLICATION & COMPUTEAmazon ECS FargateSeat Inventory ServiceAWS LambdaReservation ServiceAmazon ECS FargateOrder / Ticket ServiceAWS LambdaPayment Webhook HandlerAWS LambdaWaitlist WorkerAWS LambdaQR / Ticket IssuerStripePayment GatewayDATA & STATEAmazon ElastiCacheRedisSeat Lock CacheAmazon AuroraPostgreSQLBooking DatabaseAmazon S3Ticket Asset StoreAmazon Athena over S3Organizer AnalyticsASYNC & INTEGRATIONAWS LambdaNotification WorkerAmazon SQSReservation QueueAmazon SQS FIFOWaitlist QueueAmazon SQS DLQDead-Letter QueueAmazon SES + SNSEmail / SMSAmazon EventBridge +LambdaCalendar SyncSECURITY & OPERATIONSAWS Secrets ManagerSecrets ManagementAmazon CloudWatch +X-RayObservability

Event Booking Platform - AWS - Production implementation lanes - CloudDesign AI

Architecture Breakdown

Every major component, what it does, and the AWS service powering it.

AWS

Availability API

Amazon API Gateway

Routes, authenticates, and rate-limits incoming requests.

AWS

Reservation Lock

AWS Lambda

Handles business logic and integrates with surrounding services.

AWS

Booking DB

Amazon Aurora PostgreSQL

Stores and retrieves data with durability and access controls.

AWS

Payment Processing

AWS Lambda

Handles business logic and integrates with surrounding services.

AWS

Ticket Generator

Amazon ECS Fargate

Handles business logic and integrates with surrounding services.

AWS

QR + Ticket Store

AWS Lambda

Stores and retrieves data with durability and access controls.

AWS

Email Delivery

Amazon SES + SNS

Handles business logic and integrates with surrounding services.

AWS

Analytics

Amazon Athena over S3

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$187 / month estimated

API Gateway

Availability API

$15/mo

ElastiCache

Reservation lock

$55/mo

RDS Aurora

Booking database

$90/mo

Stripe

Payment processing

$0 + fees/mo

Lambda

Ticket generator

$8/mo

S3

QR + ticket store

$5/mo

SES

Email delivery

$4/mo

CloudWatch

Analytics

$10/mo

Total estimate

$187 / 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.

main.tf — AWS
Full export after generation
resource "aws_elasticache_replication_group" "seats" {
  replication_group_id = "${var.prefix}-seats"
  node_type            = "cache.r7g.medium"
  automatic_failover_enabled = true
}

resource "aws_db_cluster" "bookings" {
  cluster_identifier = "${var.prefix}-bookings"
  engine             = "aurora-postgresql"
}

resource "aws_s3_bucket" "tickets" {
  bucket = "${var.prefix}-tickets"
}

# + 260 more lines — generate the full export →

Full Terraform export includes: variables, outputs, IAM roles, environment configs, and module structure.

Generate Full Terraform

CLI Preview — AWS

Ordered provisioning commands for every service. The full workflow is generated in your workspace.

deploy.sh — AWS
Full workflow after generation
aws elasticache create-replication-group \
  --replication-group-id $PREFIX-seats --cache-node-type cache.r7g.medium
aws rds create-db-cluster --db-cluster-identifier $PREFIX-bookings \
  --engine aurora-postgresql
aws s3api create-bucket --bucket $PREFIX-tickets --region $REGION
aws lambda create-function --function-name $PREFIX-ticket-gen

# + 18 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 Workflow

Cloud Provider Mapping

Every architectural function mapped to its native service on AWS, Azure, and GCP.

FunctionAWSAzureGCP
CDN / Static AssetsAmazon CloudFrontAzure Front Door PremiumCloud CDN
WAF / DDoSAWS WAF + ShieldAzure WAF + DDoS ProtectionCloud Armor
API GatewayAmazon API GatewayAzure API ManagementCloud Endpoints
Auth / RolesAmazon CognitoAzure AD B2CFirebase Auth
Real-time AvailabilityAPI Gateway WebSocketAzure SignalR ServiceFirebase Realtime Database
Seat Inventory ServiceAmazon ECS FargateAzure Container AppsCloud Run
Reservation ServiceAWS LambdaAzure FunctionsCloud Run
Order / Ticket ServiceAmazon ECS FargateAzure Container AppsCloud Run
Payment Webhook HandlerAWS LambdaAzure FunctionsCloud Run
Waitlist WorkerAWS LambdaAzure FunctionsCloud Run
QR / Ticket IssuerAWS LambdaAzure FunctionsCloud Run
Notification WorkerAWS LambdaAzure FunctionsCloud Run
Seat Lock CacheAmazon ElastiCache RedisAzure Cache for RedisCloud Memorystore
Booking DatabaseAmazon Aurora PostgreSQLAzure PostgreSQL Flexible ServerCloud SQL PostgreSQL
Ticket Asset StoreAmazon S3Azure Blob StorageCloud Storage
Organizer AnalyticsAmazon Athena over S3Azure Synapse Serverless SQLBigQuery
Payment GatewayStripeStripeStripe
Reservation QueueAmazon SQSAzure Service BusCloud Pub/Sub
Waitlist QueueAmazon SQS FIFOAzure Service Bus (Sessions)Cloud Pub/Sub (Ordered)
Dead-Letter QueueAmazon SQS DLQService Bus Dead-letterPub/Sub Dead-letter Topic
Email / SMSAmazon SES + SNSAzure Communication ServicesSendGrid + Twilio (via Functions)
Calendar SyncAmazon EventBridge + LambdaAzure Logic AppsEventarc + Cloud Functions
Secrets ManagementAWS Secrets ManagerAzure Key VaultGCP Secret Manager
ObservabilityAmazon CloudWatch + X-RayAzure Monitor + App InsightsCloud Monitoring + Logging

Architecture Tradeoffs

How AWS, Azure, and GCP compare across the dimensions that matter most for this architecture.

Cost Efficiency

AWS
3
Azure
3
GCP
5

GCP is the most cost-effective for event booking workloads — Cloud SQL + Memorystore cost significantly less than equivalents.

Lock Reliability

AWS
5
Azure
4
GCP
4

ElastiCache with Multi-AZ automatic failover provides the highest reliability for distributed seat locks.

Scalability

AWS
5
Azure
5
GCP
5

All three handle flash-sale ticket drops with Redis-based locking preventing oversell.

Email Delivery

AWS
5
Azure
4
GCP
3

Amazon SES has the best deliverability rates and pricing for transactional e-ticket emails at scale.

Operational Simplicity

AWS
3
Azure
4
GCP
5

GCP Cloud Run + Memorystore require the least operational management for typical event platform workloads.

Production Risks for This Architecture

Known failure modes with concrete mitigations — included in every generated checklist.

1

Redis distributed lock TTL expiry causing double-booking: if payment processing takes longer than the lock TTL (common on slow card networks), the seat is released and can be re-sold — set lock TTL to at least 3x your p99 payment latency

2

Payment success but ticket generation failure: a Lambda crash after Stripe confirms payment leaves the user charged but ticketless — implement idempotent ticket generation keyed on Stripe payment intent ID with a retry queue

3

QR code validation bottleneck at event entry: scanning hundreds of tickets per minute at the door is read-heavy — pre-generate a local validation cache exportable to offline scanners to avoid API dependency at the venue

Key Capabilities Covered

Seat reservation + availability
E-ticket + QR generation
Waitlist management
Calendar sync
Organizer analytics dashboard

Frequently Asked Questions

Common questions about this architecture and what CloudDesign AI generates.

AWSAzureGCP

Generate the Event Booking Platform Architecture

Get the full architecture diagram, cost breakdown, Terraform, CLI workflow, and GitHub Actions pipeline — specific to your chosen cloud provider.

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