如何使用 terraform 将 AWS_IAM 附加到 API Gateway V2 的 $default 路由？

Question

这是我的代码

# HTTP API
resource "aws_apigatewayv2_api" "api" {
    name          = local.apigw_name
    protocol_type = "HTTP"
    target        = aws_lambda_function.function.arn
}

resource "aws_apigatewayv2_route" "default_route" {
  api_id            = aws_apigatewayv2_api.api.id
  route_key         = "$default"
  authorization_type = "AWS_IAM"   # <- THE IMPORTANT PART

  # modify the integration settings
  target = aws_lambda_function.function.arn
}

我收到以下错误消息。我可以通过 AWS 控制台或 AWS CLI 完成这项工作，但不能使用 Terraform。

│ Error: error creating API Gateway v2 route: ConflictException: Route with key $default already exists for this API
│ 
│   with aws_apigatewayv2_route.default_route,
│   on main.tf line 20, in resource "aws_apigatewayv2_route" "default_route":
│   20: resource "aws_apigatewayv2_route" "default_route" {