title: Returning from http lambda endpoint for longer than 30s
body: <p>I need to return a lot of data from a lambda over http. It's a slow query for a lot of data and will easily exceed the 30s limit. It's not an option to introduce paging but it's okay to be a long slow request. It needs to be a simple <code>GET</code> endpoint. These requirements are imposed by a third party.</p>
  <p>Would it be possible to return a stream of some sort e.g. s3 stream or kinesis stream?</p>