Learn AWS-CDK with Real Code Examples
Updated Nov 27, 2025
Architecture
CDK App -> Stack -> Construct hierarchy
Language bindings via JSII
Synthesizer converts code to CloudFormation
Deployment engine interacts with AWS APIs
Context management for environment-specific values
Rendering Model
CDK code -> Constructs -> Stacks -> CloudFormation template -> AWS API deployment
Context values guide resource configuration
Stacks are independently deployable
Dependencies between stacks resolved automatically
Resource property validation during synthesis
Architectural Patterns
Construct-based modularization
Multi-stack applications
Environment-specific configuration
Cross-stack references
CI/CD-driven deployments
Real World Architectures
Serverless microservices stack
Multi-account enterprise infrastructure
Data lake with S3, Glue, and Athena
CI/CD pipelines for infrastructure and applications
High-availability VPC and RDS setup
Design Principles
Code-first infrastructure
Composable, reusable constructs
Environment-aware configuration
High-level abstractions for AWS services
Seamless CloudFormation synthesis
Scalability Guide
Use multiple stacks for large deployments
Reuse constructs via libraries
Optimize deployment order
Split environments for dev/test/prod
Monitor stack size and CloudFormation limits
Migration Guide
Upgrade from CDK v1 to v2
Refactor custom constructs
Update deprecated APIs
Ensure environment bootstrapping
Test synthesized templates in staging accounts