Discussion on: Adding a Cognito authorizer to API Gateway with the AWS CDK

Any idea how to add an Authorizer to a "proxied" LambdaRestApi object? One that refers all the calling paths to the lambda and allows the lambda to handle the "routing". (I'm using Nestjs in the lambda.).

I tried:

this._authLambda = new Function(this, ${ options.stackName }-auth-lambda,
{
runtime: Runtime.NODEJS_12_X,
code: Code.fromAsset("./lambdas/auth"),
handler: "main.handler",
logRetention: 7,
timeout: Duration.seconds(20),
layers: [ options.nestJsLayer ]
}
);

this._gatewayRestAPI = new LambdaRestApi(this, ${ options.stackName }-auth-api, {
handler: this._authLambda,
});

const authIntegration = new LambdaIntegration(this._authLambda);

const path = this._gatewayRestAPI.root.addResource('*');
path.addMethod("POST", authIntegration,{
authorizer: options.customAuthorizer
});

But the cdk says: "Cannot call 'addResource' on a proxying LambdaRestApi; set 'proxy' to false". I guess I could go through and add the routes of my nestjs app to the rest api, but I hate having two places to maintain them.