Middleware for Starlette that allows you to store and access the context data of a request. Can be used with logging so logs automatically use request headers such as x-request-id or x-correlation-id.
Resources:
- Source: https://github.com/tomwojcik/starlette-context
- Documentation: https://starlette-context.readthedocs.io/
- Changelog: https://starlette-context.readthedocs.io/en/latest/changelog.html
Python ~3.7.0
$ pip install starlette-context==0.3.5Python ^3.8
$ pip install starlette-context>=0.3.6starlette
import uvicorn
from starlette.applications import Starlette
from starlette.middleware import Middleware
from starlette.requests import Request
from starlette.responses import JSONResponse
from starlette_context import context, plugins
from starlette_context.middleware import RawContextMiddleware
middleware = [
Middleware(
RawContextMiddleware,
plugins=(
plugins.RequestIdPlugin(),
plugins.CorrelationIdPlugin()
)
)
]
app = Starlette(middleware=middleware)
@app.route("/")
async def index(request: Request):
return JSONResponse(context.data)
uvicorn.run(app, host="0.0.0.0")In this example the response contains a json with
{
"X-Correlation-ID":"5ca2f0b43115461bad07ccae5976a990",
"X-Request-ID":"21f8d52208ec44948d152dc49a713fdd"
}Context can be updated and accessed at anytime if it’s created in the middleware.
A huge thank you to Adverity for sponsoring the development of this OSS library in 2022.
See the guide on read the docs.