See if I can get Datasette working on Zeit Now v2

I thought this was impossible because AWS Lambda doesn’t ship the sqlite3 standard library module… but apparenttly that’s not the case on Now v2 any more!

https://now-2-python-versions-ks69olzpi.now.sh/api

 _________________________________________________________________________________________________________________________________________________________________ 
/ Hello from Python from a ZEIT Now Serverless Function! Version is 3.6.10 (default, Mar 10 2020, 22:54:43)                                                       \
\ [GCC 4.8.3 20140911 (Red Hat 4.8.3-9)], sqlite3 module = <module 'sqlite3' from '/var/lang/lib/python3.6/sqlite3/__init__.py'>, sqlite3 version = [('3.7.17',)] /
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------- 
     \   ^__^
      \  (oo)\_______
         (__)\       )\/\
           ||----w |
           ||     ||

That’s from shipping this code as api/index.py:

from http.server import BaseHTTPRequestHandler
from cowpy import cow
import sys


try:
    import sqlite3
except ImportError:
    sqlite3 = None


class handler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-type", "text/plain")
        self.end_headers()
        message = cow.Cowacter().milk(
            "Hello from Python from a ZEIT Now Serverless Function! Version is {}, sqlite3 module = {}, sqlite3 version = {}".format(
                sys.version, sqlite3, sqlite3.connect(":memory:").execute("select sqlite_version()").fetchall()
            )
        )
        self.wfile.write(message.encode())
        return

Now v2 supports ASGI so this might be possible without too much work: https://zeit.co/docs/runtimes#advanced-usage/advanced-python-usage/asynchronous-server-gateway-interface

[simonw]

I’m confident it’s possible to create a plugin that deploys to Now v2 now. I’ll do the rest of the work in a separate repo: https://github.com/simonw/datasette-publish-now

[simonw]

Yes I think that’s it - I created a table in about.db, then dropped that table and ran vacuum and the result was an empty database file that wasn’t zero bytes. I deployed it and it worked: https://datasette-koo7abu7j.now.sh/