The order of middleware affections the outcome.

Some middleware are dependant on the functionality of other middleware. For example a middleware that requires usage of request.session should come after the SessionMiddleware.

If our GitHub code review bot spots this issue in your pull request it gives this advice:

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settings.py
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MIDDLEWARE =[
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    "django.contrib.auth.middleware.AuthenticationMiddleware",
Suggested changes
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    "django.contrib.sessions.middleware.SessionMiddleware",
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    "django.contrib.sessions.middleware.SessionMiddleware",
Expand 2 lines ...
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The order of middleware affections the outcome.

Some middleware are dependant on the functionality of other middleware. For example a middleware that requires usage of request.session should come after the SessionMiddleware.

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    "django.contrib.sessions.middleware.SessionMiddleware",
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    ...
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]
Update settings.py
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Configuring this check

Code Review Doctor will run this check by default. No configuration is needed but the check can be turned on/off using check code middleware-order in your pyproject.toml file.

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