Serve pre-compressed static content from GridFS over HTTP. Uses the aiohttp web framework and AIOHTTPGridFS.


Start a MongoDB server on its default port and run this script. Then visit:


Serve compressed static content from GridFS

import asyncio
import gzip
import tempfile

import aiohttp.web

from motor.aiohttp import AIOHTTPGridFS
from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorGridFSBucket

client = AsyncIOMotorClient()

# Use Motor to put compressed data in GridFS, with filename "my_file".
async def put_gridfile():
    with tempfile.TemporaryFile() as tmp:
        with gzip.GzipFile(mode="wb", fileobj=tmp) as gzfile:
            for _ in range(10):
                gzfile.write(b"Nonesuch nonsense\n")

        gfs = AsyncIOMotorGridFSBucket(client.my_database)
        await gfs.upload_from_stream(
            filename="my_file", source=tmp, metadata={"contentType": "text", "compressed": True}

# Add "Content-Encoding: gzip" header for compressed data.
def gzip_header(response, gridout):
    if gridout.metadata.get("compressed"):
        response.headers["Content-Encoding"] = "gzip"

gridfs_handler = AIOHTTPGridFS(client.my_database, set_extra_headers=gzip_header)

app = aiohttp.web.Application()

# The GridFS URL pattern must have a "{filename}" variable.
resource = app.router.add_resource("/fs/{filename}")
resource.add_route("GET", gridfs_handler)
resource.add_route("HEAD", gridfs_handler)