Cdk-from-cfn NPM

cdk-from-cfn

cdk-from-cfn is a command-line tool that converts AWS CloudFormation templates into AWS CDK code. It supports multiple programming languages including TypeScript, Python, Java, Go, and C#.

Installation

$ cargo install cdk-from-cfn

Usage

$ cdk-from-cfn [INPUT] [OUTPUT] --language <LANGUAGE> --stack-name <STACK_NAME>

INPUT is the input file path (STDIN by default).
OUTPUT is the output file path; if not specified, output will be printed on your command line (STDOUT by default).

Node.js Module Usage

cdk-from-cfn leverages WebAssembly (WASM) bindings to provide a cross-platform npm module, which exposes apis to be used in Node.js projects. Simply take a dependency on cdk-from-cfn in your package.json and utilize it as you would a normal module. i.e.

import * as cdk_from_cfn from 'cdk-from-cfn';

// get supported languages
cdk_from_cfn.supported_languages();

// transmute cfn template into cdk app
cdk_from_cfn.transmute(template, language, stackName)

Language and Feature support

Name	Enabled by default	Description
`typescript`	:heavy_check_mark:	Enables support for TypeScript output
`golang`	:heavy_check_mark:	Enables support for Go output
`java`	:heavy_check_mark:	Enables support for Java output
`Python`	:heavy_check_mark:	Enables support for Python output
`csharp`	:heavy_check_mark:	Enables support for C# output

You can enable experimental languages (not enabled by default) by enabling the relevant feature:

$ cargo build --release --features=<feature-name>
Finished release [optimized] target(s) in 0.17s

If you want to disable on-by-default languages, you can pass --no-default-features:

$ cargo build --release --no-default-features --features=golang
Finished release [optimized] target(s) in 0.17s

Implemented

Fn::FindInMap
Fn::Join
Fn::Sub
Ref
Fn::And
Fn::Equals
Fn::If
Fn::Not
Fn::Or
Fn::GetAtt
Fn::Base64 support
Fn::ImportValue support
Fn::Select support
Resource ordering based on dependencies
Conditions are emitted in ts but not attached to resource conditions
Metadata emission for updates to asgs / lambda functions.
Emission of outputs / exports
Fn::GetAZs support
Adding depends-on, and ordering based on it too.
Deletion policy
Fn::Cidr support

Remaining

There are known unsupported features. Working on them in priority order:

Create policy
ssm metadata references
secretsmanager references

@everything-registry/sub-chunk-1303 cdk-pretty-diff

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