AsyncExitStackMiddleware

This class provides an ASGI middleware that manages an asynchronous exit stack for each request. It makes an AsyncExitStack instance available in the ASGI scope, allowing downstream applications to register asynchronous cleanup operations that will be executed when the request finishes.

Attributes

Attribute	Type	Description
app	ASGIApp	This attribute stores the ASGI application that the middleware will wrap and is used to process incoming requests after the middleware has performed its operations.
context_name	str = "fastapi_middleware_astack"	This attribute stores the key under which the AsyncExitStack instance will be stored in the ASGI scope, allowing downstream applications to access and manage asynchronous context.

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Constructor

Signature

def AsyncExitStackMiddleware(
    app: ASGIApp,
    context_name: str = fastapi_middleware_astack
) - > null

Parameters

Name	Type	Description
app	ASGIApp	The ASGI application.
context_name	str = fastapi_middleware_astack	The name to use for the AsyncExitStack in the scope.

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