[CDKTF] Configuring API key source for API Gateway created with OpenAPI

Context

A typical ApiGatewayRestApi object looks like this,

const apiGatewayRestApi = new aws.apiGatewayRestApi.ApiGatewayRestApi(this, "awpigw-rest-api", { name: "my-apigw", body: myOpenApiSpecification }) 

Initial intuition and instruction to update API Gateway's API_KEY_SOURCE is to add x-amazon-apigateway-api-key-source to OpenAPI specification and pass it as the body for initializing ApiGatewayRestApi.

Problem

Adding x-amazon-apigateway-api-key-source to OpenAPI specification and setting it in the body does not update API Gateway's API_KEY_SOURCE

{ "openapi" : "3.0.1", "info" : { "title" : "Test1" }, "servers" : [ { "url" : "/{basePath}", "variables" : { "basePath" : { "default" : "import" } } } ], "x-amazon-apigateway-api-key-source" : "HEADER", . . . } 

Solution

In order to add the change the API Gateways's API_KEY_SOURCE, we only need to add one more line of configuration while initializing ApiGatewayRestApi,

const apiGatewayRestApi = new aws.apiGatewayRestApi.ApiGatewayRestApi(this, "awpigw-rest-api", { name: "my-apigw", body: myOpenApiSpecification, apiKeySource: "AUTHORIZER" }) 

There is no need to configure it in the 'myOpenApiSpecification' as specified here.