lambda.tf

resource "aws_lambda_permission" "apigw" {
   statement_id  = "AllowAPIGatewayInvoke"
   action        = "lambda:InvokeFunction"
   function_name = aws_lambda_function.example.function_name
   principal     = "apigateway.amazonaws.com"

   # The "/*/*" portion grants access from any method on any resource
   # within the API Gateway REST API.
   source_arn = "${aws_api_gateway_rest_api.example.execution_arn}/*/*"
}

resource "aws_lambda_function" "example" {
   function_name = "ServerlessPerson"

   handler = "MyHandler::handleRequest"
   runtime = "java11"

   role = aws_iam_role.lambda_exec.arn
}