Writing constructs

Writing custom CDK constructs allows you to tailor CDKTN to your specific needs, enabling customization, reusability, and modularity.

Writing your own CDK constructs can enable:

Customization: Create constructs that reflect your organization's unique infrastructure patterns, making it easier to manage and maintain your cloud resources.
Reusability: Reuse across multiple projects and environments, reducing the effort required to define and manage infrastructure, increasing consistency across your organization.
Modularity: Break down of complex infrastructure into smaller constructs, allowing you to more easily manage and update individual components without affecting the entire infrastructure.
Improved security and compliance: Create constructs that incorporate your security and compliance best practices, to ensure your infrastructure meets specific requirements and regulations.
Faster development: Accelerate infrastructure development by reusing pre-built components, reducing the time and effort required to define and deploy resources.

In this chapter, we will define a custom CDK construct called HitCounter that takes a Lambda function as a property. This custom construct deploys resources that monitors the number hits on a URL. The resources defined in this custom construct includes an AWS Lambda function and an Amazon DynamoDB table.