title: Create API gateway in localstack
body: <p>I was able to setup localstack (<a href="https://github.com/atlassian/localstack" rel="noreferrer">https://github.com/atlassian/localstack</a>) and also create lambda function in it (using create-function ... command). However, I couldnt find a way to create an APIGateway in localstack so that the lambda function can be called using it.
  Basically, I need an APIGateway(and its arn), so that using that the lambda function can be called.</p>