Event-Driven Architecture Kit

Event-Driven Architecture Toolkit

Production-ready infrastructure templates for building event-driven systems on AWS: SQS/SNS fan-out, EventBridge routing, Kinesis streaming, dead letter queue processing, and schema validation -- all codified in Terraform and CloudFormation.

Stop building point-to-point integrations that become spaghetti. This toolkit gives you battle-tested patterns for decoupled, scalable event-driven architectures. Every pattern is implemented as deployable IaC with monitoring, DLQ handling, and schema enforcement built in.

Built for backend engineers and architects designing microservice communication, real-time data pipelines, and async processing workflows.

What's Included

Architecture Patterns Implemented

Pattern 1: Fan-Out (SNS → SQS)             Pattern 2: Event Bus (EventBridge)
┌─────────┐                                  ┌─────────────┐
│ Producer │──→ SNS Topic                    │  Producer   │──→ EventBridge Bus
└─────────┘      │                            └─────────────┘      │
                 ├──→ SQS Queue A (Service A)                      ├──→ Rule 1 → Lambda
                 ├──→ SQS Queue B (Service B)                      ├──→ Rule 2 → SQS
                 └──→ SQS Queue C (Analytics)                      └──→ Rule 3 → Step Functions

Pattern 3: Streaming (Kinesis)               Pattern 4: DLQ + Replay
┌─────────┐                                  ┌─────┐    ┌─────┐    ┌─────┐
│ Producer │──→ Kinesis Stream               │ SQS │──✗─│ DLQ │──→ │Replay│
└─────────┘      │                            └─────┘    └─────┘    └─────┘
                 ├──→ Lambda Consumer                                  │
                 ├──→ Firehose → S3                                    ▼
                 └──→ Analytics                                   Back to SQS

Prerequisites

• AWS Account with permissions for SQS, SNS, EventBridge, Kinesis, Lambda, IAM
• Terraform >= 1.5.0
• Python >= 3.10 (stdlib only -- no pip packages needed)
• AWS CLI v2 configured with appropriate credentials

Quick Start

1. Deploy SQS/SNS Fan-Out Topology (Terraform)

cd terraform/
terraform init
terraform plan -var="environment=production" \
               -var="project_name=my-platform" \
               -var="alert_email=team@example.com"
terraform apply

... continues with setup instructions, usage examples, and more.