issue_comments

And now the tests are all passing!

Still to do:

• Use raw_path so table names containing / can work correctly
• Get ?_trace=1 working again
• Replacement for @app.listener("before_server_start")
• Replace Sanic request object with my own request class, so I can remove Sanic dependency

I'm going to move the remaining work into a pull request.

OK, it's beginning to shape up now. Next steps:

• [x] Static file support (including for plugins) - plus tests
• [x] Streaming support so the CSV tests will pass
• [x] Ability to download the database file
• [x] Implement missing-slash redirects

Tests are failing on Python 3.5: https://travis-ci.org/simonw/datasette/jobs/549380098 - error is TypeError: the JSON object must be str, not 'bytes'

I also need to actually take advantage of raw_path such that pages like https://fivethirtyeight.datasettes.com/fivethirtyeight/twitter-ratio%2Fsenators can be correctly served.

All of the tests are now passing!

I still need a solution for this:

https://github.com/simonw/datasette/blob/5bd510b01adae3f719e4426b9bfbc346a946ba5c/datasette/app.py#L706-L714

I think the answer is ASGI lifespan, which is supported by Uvicorn. https://asgi.readthedocs.io/en/latest/specs/lifespan.html#startup

Next test to fix (because by new test harness doesn't actually obey the allow_redirects= parameter): ``` ___ test_database_page_redirects_with_url_hash _____

app_client_with_hash = <tests.fixtures.TestClient object at 0x10981f240>

def test_database_page_redirects_with_url_hash(app_client_with_hash):
    response = app_client_with_hash.get("/fixtures", allow_redirects=False)
    assert response.status == 302
    response = app_client_with_hash.get("/fixtures")

  assert "fixtures" in response.text

E AssertionError: assert 'fixtures' in '' E + where '' = <tests.fixtures.TestResponse object at 0x10981f550>.text ```

CSV tests all pass as of https://github.com/simonw/datasette/commit/ff9efa668ebc33f17ef9b30139960e29906a18fb

This code could be a lot neater though. At the very least I'm going to refactor datasette/utils.py into a datasette/utils package and put all of my new ASGI utilities in datasette/utils/asgi.py

The way I implemented streaming on top of a writer object (inspired by Sanic) is a bit of a weird hack. I think I'd rather use an abstraction where my view functions can yield chunks of body data.

Published an in-progress demo:

datasette publish now fixtures.db -n datasette-asgi-early-demo --branch=asgi

Here it is: https://datasette-asgi-early-demo-qahhxctqpw.now.sh/

Lots still to do:

• Static files are not being served
• Streaming CSV files don't work
• Tests all fail
• Some URLs (e.g. the 'next' link on tables) are incorrect

I'm going to work on getting the unit test framework to be ASGI-compatible next.