apigateway: Use existing RestAPI to create CloudFront distribution

[cyberworkz]

Describe the feature

Current AWS CDK does not give the possibility to use an existing RestAPI (RestApiBase) to create a stack for Cloudfront distributions. Add a static method to RestApiBase to refer to an existing RestApi and a certain stage.

Use Case

I have some existing RestApi's in the API Gateway. I want to use a Cloudfront distribution for them and use AWS CDK to create these distributions.

Proposed Solution

The current code is missing fields to properly determine all necessary info. Include stage-name for creating a RestApiBase will probably help.

This code fails:

let restApi: apigateway.RestApiBase = apigateway.RestApi.fromRestApiId(this, props.name, props.restApiId) as apigateway.RestApiBase;
        
        new cloudfront.Distribution(this, props.name, {
            defaultBehavior: {
                origin: new cdk.aws_cloudfront_origins.RestApiOrigin(restApi,
                    {
                        originPath: '/home',
                    },
                ),
                allowedMethods: cloudfront.AllowedMethods.ALLOW_ALL,

Other Information

I am trying to use a proxy-lambda with apigateway integration to connect to a cloudfront distribution.

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.171.0

Environment details (OS name and version, etc.)

Apple M1 Max Macos Sequoia 15.1.1 (24B91)