Motor 0.5 integrates with asyncio. The most popular asyncio HTTP implementation and low-level web framework is aiohttp.

Like Tornado, aiohttp provides a static file server; it's not meant for production, since serving actual static files is better handled by Nginx, etc. However, it would be useful if I provide a "static" file server for aiohttp backed by GridFS, the same as I do for Tornado.

Build it on top of stream_to_handler, the same as the Tornado GridFSHandler is.