Migrate from apigateway to apigatewayv2 - amazon-web-services

Question

How to migrate from apigateway to apigatewayv2 using AWS-CDK?
Specifically: I am using LambdaRestApi and restApiId and deploymentStage from that resource.
// old
const apiGw = new apigateway.LambdaRestApi(this, 'MyAPI', {
handler: lambdaFrontend,
proxy: true,
binaryMediaTypes: ['*/*'],
});
// new
const apiGw2 = new apigateway.CfnApi(this as any, 'MyAPIV2', {
protocolType: "http",
target: lambdaFrontend.functionArn,
})
I am trying to get the OriginSource for CF like so:
const domainName = ${apiGw.restApiId}.execute-api.${this.region}.${this.urlSuffix};
First question: How can I retrieve the domainName with ApiGW2?
I also need the stageName. Currently I am retrieving it like so:
const originPath = '/' + apiGw.deploymentStage.stageName;
Second question: How can I retrieve the origin Path with ApiGW2?
Alternatively: Is there a better way to connect my ApiGW2 with CF?
const fecf = new cf.CloudFrontWebDistribution(this, "MyCF", {
originConfigs: [{
customOriginSource: {
domainName: `${apiGw.restApiId}.execute-api.${this.region}.${this.urlSuffix}`,
},
originPath: '/' + apiGw.deploymentStage.stageName,
...
}

Answer 1

This can now be solved quite easily since we have official documentation for this now.
If anybody out there wants to migrate to V2 now, this is the way:
const httpApiIntegration = new apigatewayv2Integrations.LambdaProxyIntegration({
handler: fn,
});
const httpApi = new apigatewayv2.HttpApi(this, "MyApiV2");
httpApi.addRoutes({
path: "/",
methods: [HttpMethod.ANY],
integration: httpApiIntegration,
});
new cloudfront.CloudFrontWebDistribution(this, "MyCf", {
defaultRootObject: "/",
originConfigs: [
{
customOriginSource: {
domainName: `${httpApi.httpApiId}.execute-api.${this.region}.${this.urlSuffix}`,
},
behaviors: [
{
isDefaultBehavior: true,
},
],
},
],
enableIpV6: true,
});
https://docs.aws.amazon.com/cdk/api/latest/docs/aws-apigatewayv2-readme.html
Steps:
create an integration (e.g. a lambda function), this comes from a dedicated package (apigatewayv2-integrations)
create an HttpApi, no options needed
New: Opposed to APIGWv1 you will have to add route handlers for your paths (httpApi.addRoutes).
Cloudfront config is very similar