request.form() method for POST data and file uploads
Datasette now includes a request.form() method for parsing form submissions, including handling file uploads. (#2626)
This supports both application/x-www-form-urlencoded and multipart/form-data content types, and uses a new streaming multipart parser that processes uploads without buffering entire request bodies in memory.
# Parse form fields (files are discarded by default)
form = await request.form()
username = form["username"]
# Parse form fields AND file uploads
form = await request.form(files=True)
uploaded = form["avatar"]
content = await uploaded.read()The returned FormData object provides dictionary-style access with support for multiple values per key via form.getlist("key"). Uploaded files are represented as UploadedFile objects with filename, content_type, size properties and async read() and seek() methods.
Files smaller than 1MB are held in memory; larger files automatically spill to temporary files on disk. Configurable limits control maximum file size, request size, field counts and more.
Several internal views (permissions debug, messages debug, create token) now use request.form() instead of request.post_vars().
request.post_vars() remains available for backwards compatibility but is no longer the recommended API for handling POST data.
render_cell and foreign_key_tables extras for the JSON API
The table JSON API now supports ?_extra=render_cell, which returns the rendered HTML for each cell as produced by the render_cell plugin hook. Only columns whose rendered output differs from the default are included. (#2619)
The row JSON API also gains ?_extra=render_cell and ?_extra=foreign_key_tables extras, bringing it closer to parity with the table API.
The row JSON API now returns "ok": true in its response, for consistency with the table API.
uv run pytest with a dev= dependency group
The recommended development environment for Datasette now uses uv. You can now set up a development environment and run the test suite with just uv run pytest --- no manual virtualenv or pip install step required. (#2611)
Other changes
- Plugins that raise
datasette.utils.StartupError()during startup now display a clean error message instead of a full traceback. (#2624) - Schema refreshes are now throttled to at most once per second, providing a small performance increase. (#2629)
- Minor performance improvement to
remove_infinites--- rows without infinity values now skip the list/dict reconstruction step. (#2629) - Filter inputs and the search input no longer trigger unwanted zoom on iOS Safari. Thanks, Daniel Olasubomi Sobowale. (#2346)
table_names()andget_all_foreign_keys()now return results in deterministic sorted order. (#2628)- Switched linting to ruff and fixed all lint errors. (#2630)