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starlette context

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

Installation

.. code-block:: console

   $ pip install starlette-context

Requirements

Should be working fine on 3.7+. Official support starts at 3.8.

Dependencies

-  ``starlette``

Example
~~~~~~~

.. code:: python

   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

.. code:: json

   {
     "X-Correlation-ID":"5ca2f0b43115461bad07ccae5976a990",
     "X-Request-ID":"21f8d52208ec44948d152dc49a713fdd"
   }

Context can be updated and accessed at anytime if it’s created in the
middleware.

Sponsorship
~~~~~~~~~~~

A huge thank you to `Adverity <https://www.adverity.com/>`__ for
sponsoring the development of this OSS library in 2022.

Contribution

See the guide on read the docs <https://starlette-context.readthedocs.io/en/latest/contributing.html#contributing>__.

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