pagebar¶
A tiny prod-safe perf footer for ASGI apps. One line at the bottom of every page, click to expand. No SQL text, no env vars, no stack traces — nothing that could leak.
Click it to expand the full panel:
Install¶
pip install pagebar # core only
pip install pagebar[sqlalchemy] # with SQL query counter
pip install pagebar[flask] # Flask (WSGI) integration
Quickstart¶
Add the middleware, then call the helper in your base template:
from pagebar import PagebarMiddleware, pagebar_html
from starlette.applications import Starlette
from starlette.middleware import Middleware
app = Starlette(
middleware=[Middleware(PagebarMiddleware, package="my-app")],
routes=[...],
)
That's it. One name for the middleware, one for the helper. See Usage for Litestar and Flask, and Reference for the fields and the knobs.
Why not the Django/Flask/Litestar debug toolbars?¶
They reveal SQL text, environment, settings, request bodies, stack traces — fine in dev, unacceptable in production. pagebar surfaces a fixed, public-safe set of fields. The shape is the security model.
Non-goals¶
No panels system, no plugins, no per-framework adapters, no APM, no time series, no SQL EXPLAIN, no profiler. Pure ASGI middleware + one helper function in one file.
License¶
MIT.