CloudFormation Custom Resources extend CloudFormation's capabilities by enabling custom provisioning logic during stack operations. It offers two implementation approaches in CDK: Provider with Custom
Resource for complete resource templates, and AwsCustomResource for registry-based resources with simpler API actions.
Reasons to Read -- Learn:
how to resolve cyclic dependencies in CloudFormation stacks, particularly when you need to trigger a Lambda function while passing the resource ARN as an environment variable
detailed implementation of Custom Resources in CDK, including practical code examples in both Rust and TypeScript for handling Custom Resource requests and responses
crucial differences between Provider-based and registry-based Custom Resources, helping you choose the right approach for your specific use case
7 min readauthor: Itsuki
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